Support reading from and copying images to clipboard (#19930)

* support reading images from clipboard(win32/android)

* Add DataFormat.Image. Prioritize png format when retrieving image from clipboard

* add browser support

* addressed comments

* win32 - add support for CF_DIB and CF_BITMAP formats

* win32 - add support for copying bitmaps to clipboard as DIB

* browser - add support for copying bitmap to clipboard

* Implement bitmap clipboard for iOS

* rename DataFormat.Image to DataFormat.Bitmap

* Implement Bitmap clipboard on macOS

* Use MemoryStream for bitmap clipboard/dnd on macOS backend

* Add public.jpeg support on macOS backend (convert it to png while in objc)

* Support TIFF format on iOS backend, by converting it to UIImage first

* Add Bitmap DND sample

* add clipboard bitmap support on linux

* simply bitmap format search on win32 clipboard

* fix linux clipboard image

* Bump MACOSX_DEPLOYMENT_TARGET

* Fix IDL incompatibility

* address review

* more reviews

* Fix Android crash on copy when a bitmap is present in the clipboard

* Handle any error that might occur pasting from an external content provider

* Add data transfer extension methods for Bitmap

---------

Co-authored-by: Max Katz <maxkatz6@outlook.com>
Co-authored-by: Julien Lebosquain <julien@lebosquain.net>

native/Avalonia.Native/src/OSX/Avalonia.Native.OSX.xcodeproj/project.pbxproj

@@ -485,6 +485,7 @@
 				DYLIB_CURRENT_VERSION = 1;
 				EXECUTABLE_PREFIX = lib;
 				HEADER_SEARCH_PATHS = ../../inc;
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 			};
 			name = Debug;
@@ -496,6 +497,7 @@
 				DYLIB_CURRENT_VERSION = 1;
 				EXECUTABLE_PREFIX = lib;
 				HEADER_SEARCH_PATHS = ../../inc;
+				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 			};
 			name = Release;

native/Avalonia.Native/src/OSX/clipboard.mm

@@ -27,12 +27,11 @@ public:
         
         if (changeCount != [_pasteboard changeCount])
             return COR_E_OBJECTDISPOSED;
-        
-        auto types = [_pasteboard types];
-        *ret = types == nil ? nullptr : CreateAvnStringArray(types);
+
+        *ret = ConvertPasteboardTypes([_pasteboard types]);
         return S_OK;
     }
-    
+
     virtual HRESULT GetItemCount(int64_t changeCount, int* ret) override
     {
         START_COM_ARP_CALL;
@@ -57,13 +56,36 @@ public:
         
         if (changeCount != [_pasteboard changeCount])
             return COR_E_OBJECTDISPOSED;
-        
+
         auto item = [[_pasteboard pasteboardItems] objectAtIndex:index];
-        auto types = [item types];
-        *ret = types == nil ? nullptr : CreateAvnStringArray(types);
+        
+        *ret = ConvertPasteboardTypes([item types]);
         return S_OK;
     }
-    
+
+    static IAvnStringArray* ConvertPasteboardTypes(NSArray<NSPasteboardType> *types)
+    {
+        if (types != nil)
+        {
+            NSMutableArray<NSString *> *mutableTypes = [types mutableCopy];
+
+            // Add png if format list doesn't have PNG,
+            // but has any other image type that can be converter into PNG
+            if (![mutableTypes containsObject:NSPasteboardTypePNG])
+            {
+                if ([mutableTypes containsObject:NSPasteboardTypeTIFF]
+                    || [mutableTypes containsObject:@"public.jpeg"])
+                {
+                    [mutableTypes addObject: NSPasteboardTypePNG];
+                }
+            }
+
+            return CreateAvnStringArray(mutableTypes);
+        }
+
+        return nil;
+    }
+
     virtual HRESULT GetItemValueAsString(int index, int64_t changeCount, const char* format, IAvnString** ret) override
     {
         START_COM_ARP_CALL;
@@ -91,8 +113,45 @@ public:
             return COR_E_OBJECTDISPOSED;
         
         auto item = [[_pasteboard pasteboardItems] objectAtIndex:index];
-        auto value = [item dataForType:[NSString stringWithUTF8String:format]];
+        auto formatStr = [NSString stringWithUTF8String:format];
         
+        auto value = [item dataForType: formatStr];
+
+        // If PNG wasn't found, try to convert TIFF or JPEG to PNG
+        if (value == nil && [formatStr isEqualToString: NSPasteboardTypePNG])
+        {
+            NSData *imageData = nil;
+
+            // Try TIFF first
+            imageData = [item dataForType:NSPasteboardTypeTIFF];
+
+            // If no TIFF, try JPEG
+            if (imageData == nil) {
+                imageData = [item dataForType:@"public.jpeg"];
+            }
+
+            if (imageData != nil)
+            {
+                auto image = [[NSImage alloc] initWithData:imageData];
+
+                NSBitmapImageRep *bitmapRep = nil;
+                for (NSImageRep *rep in image.representations) {
+                    if ([rep isKindOfClass:[NSBitmapImageRep class]]) {
+                        bitmapRep = (NSBitmapImageRep *)rep;
+                        break;
+                    }
+                }
+
+                if (!bitmapRep) {
+                    [image lockFocus];
+                    bitmapRep = [[NSBitmapImageRep alloc] initWithFocusedViewRect:NSMakeRect(0, 0, image.size.width, image.size.height)];
+                    [image unlockFocus];
+                }
+
+                value = [bitmapRep representationUsingType:NSBitmapImageFileTypePNG properties:@{}];
+            }
+        }
+
         *ret = value == nil || [value length] == 0
             ? nullptr
             : CreateByteArray((void*)[value bytes], (int)[value length]);

samples/ControlCatalog/Pages/ClipboardPage.xaml

@@ -6,6 +6,8 @@
 
     <Button Click="CopyText" Content="Copy text to clipboard" />
     <Button Click="PasteText" Content="Paste text from clipboard" />
+    <Button Click="CopyImage" Content="Copy image to clipboard" />
+    <Button Click="PasteImage" Content="Paste image from clipboard" />
     <Button Click="CopyFiles" Content="Copy files to clipboard" />
     <Button Click="PasteFiles" Content="Paste files from clipboard" />
     <Button Click="CopyBinaryData" Content="Copy bytes to clipboard" />
@@ -20,5 +22,9 @@
              MinHeight="100"
              AcceptsReturn="True"
              Watermark="Text to copy of file names per line" />
+    <Viewbox Width="420" Height="360">
+      <Image x:Name="ClipboardImage"
+      />
+    </Viewbox>
   </StackPanel>
 </UserControl>

samples/ControlCatalog/Pages/ClipboardPage.xaml.cs

@@ -8,6 +8,8 @@ using Avalonia.Input;
 using Avalonia.Input.Platform;
 using Avalonia.Interactivity;
 using Avalonia.Media;
+using Avalonia.Media.Imaging;
+using Avalonia.Platform;
 using Avalonia.Platform.Storage;
 using Avalonia.Threading;
 
@@ -24,11 +26,19 @@ namespace ControlCatalog.Pages
 
         private readonly DispatcherTimer _clipboardLastDataObjectChecker;
         private DataTransfer? _storedDataTransfer;
+
+        private bool _checkingClipboardDataTransfer;
+        private Bitmap _defaultImage;
+
         public ClipboardPage()
         {
             InitializeComponent();
             _clipboardLastDataObjectChecker =
                 new DispatcherTimer(TimeSpan.FromSeconds(0.5), default, CheckLastDataObject);
+
+            using var asset = AssetLoader.Open(new Uri("avares://ControlCatalog/Assets/image1.jpg"));
+            _defaultImage = new Bitmap(asset);
+            ClipboardImage.Source = _defaultImage;
         }
 
         private async void CopyText(object? sender, RoutedEventArgs args)
@@ -37,6 +47,12 @@ namespace ControlCatalog.Pages
                 await clipboard.SetTextAsync(ClipboardContent.Text ?? string.Empty);
         }
 
+        private async void CopyImage(object? sender, RoutedEventArgs args)
+        {
+            if (TopLevel.GetTopLevel(this)?.Clipboard is { } clipboard)
+                await clipboard.SetValueAsync(DataFormat.Bitmap, _defaultImage);
+        }
+
         private async void PasteText(object? sender, RoutedEventArgs args)
         {
             if (TopLevel.GetTopLevel(this)?.Clipboard is { } clipboard)
@@ -45,6 +61,20 @@ namespace ControlCatalog.Pages
             }
         }
 
+        private async void PasteImage(object? sender, RoutedEventArgs args)
+        {
+            if (TopLevel.GetTopLevel(this)?.Clipboard is { } clipboard)
+            {
+                using var data = await clipboard.TryGetDataAsync();
+                Bitmap? source = null;
+                if (data != null)
+                {
+                    source = await data!.TryGetValueAsync(DataFormat.Bitmap);
+                }
+                ClipboardImage.Source = source;
+            }
+        }
+
         private async void CopyFiles(object? sender, RoutedEventArgs args)
         {
             if (TopLevel.GetTopLevel(this)?.Clipboard is { } clipboard)
@@ -154,7 +184,6 @@ namespace ControlCatalog.Pages
             base.OnDetachedFromVisualTree(e);
         }
 
-        private bool _checkingClipboardDataTransfer;
         private async void CheckLastDataObject(object? sender, EventArgs e)
         {
             if (_checkingClipboardDataTransfer)

samples/ControlCatalog/Pages/DragAndDropPage.xaml

@@ -25,6 +25,10 @@
                 Classes="draggable">
           <TextBlock Name="DragStateFiles" TextWrapping="Wrap">Drag Me (files)</TextBlock>
         </Border>
+        <Border Name="DragMeBitmap"
+                Classes="draggable">
+          <TextBlock Name="DragStateBitmap" TextWrapping="Wrap">Drag Me (bitmap)</TextBlock>
+        </Border>
         <Border Name="DragMeCustom"
                 Classes="draggable">
           <TextBlock Name="DragStateCustom" TextWrapping="Wrap">Drag Me (custom)</TextBlock>
@@ -51,6 +55,6 @@
       </StackPanel>
     </WrapPanel>
 
-    <TextBlock x:Name="DropState" TextWrapping="Wrap" />
+    <ContentControl x:Name="DropState" TextBlock.TextWrapping="Wrap" />
   </StackPanel>
 </UserControl>

samples/ControlCatalog/Pages/DragAndDropPage.xaml.cs

@@ -4,6 +4,11 @@ using System.Reflection;
 using System.Threading.Tasks;
 using Avalonia.Controls;
 using Avalonia.Input;
+using Avalonia.Markup.Xaml;
+using Avalonia.Media;
+using Avalonia.Media.Imaging;
+using Avalonia.Platform;
+
 using Avalonia.Platform.Storage;
 
 namespace ControlCatalog.Pages
@@ -41,6 +46,11 @@ namespace ControlCatalog.Pages
                     }
                 },
                 DragDropEffects.Copy);
+
+            SetupDnd(
+                "Bitmap",
+                d => d.Add(DataTransferItem.Create(DataFormat.Bitmap, new Bitmap(AssetLoader.Open(new Uri("avares://ControlCatalog/Assets/image1.jpg"))))),
+                DragDropEffects.Copy);
         }
 
         private void SetupDnd(string suffix, Action<DataTransfer> factory, DragDropEffects effects) =>
@@ -98,6 +108,7 @@ namespace ControlCatalog.Pages
                 // Only allow if the dragged data contains text or filenames.
                 if (!e.DataTransfer.Contains(DataFormat.Text)
                     && !e.DataTransfer.Contains(DataFormat.File)
+                    && !e.DataTransfer.Contains(DataFormat.Bitmap)
                     && !e.DataTransfer.Contains(_customFormat))
                     e.DragEffects = DragDropEffects.None;
             }
@@ -115,7 +126,7 @@ namespace ControlCatalog.Pages
 
                 if (e.DataTransfer.Contains(DataFormat.Text))
                 {
-                    DropState.Text = e.DataTransfer.TryGetText();
+                    DropState.Content = e.DataTransfer.TryGetText();
                 }
                 else if (e.DataTransfer.Contains(DataFormat.File))
                 {
@@ -139,12 +150,19 @@ namespace ControlCatalog.Pages
                             contentStr += $"Folder {item.Name}: items {childrenCount}{Environment.NewLine}{Environment.NewLine}";
                         }
                     }
-
-                    DropState.Text = contentStr;
+                    DropState.Content = contentStr;
+                }
+                else if (e.DataTransfer.Contains(DataFormat.Bitmap))
+                {
+                    var bitmap = e.DataTransfer.TryGetValue(DataFormat.Bitmap);
+                    DropState.Content = new Image
+                    {
+                        Source = bitmap, Width = 400, Height = 300, Stretch = Stretch.Uniform
+                    };
                 }
                 else if (e.DataTransfer.Contains(_customFormat))
                 {
-                    DropState.Text = "Custom: " + e.DataTransfer.TryGetValue(_customFormat);
+                    DropState.Content = "Custom: " + e.DataTransfer.TryGetValue(_customFormat);
                 }
             }
 

src/Android/Avalonia.Android/Platform/AndroidDataFormatHelper.cs

@@ -7,6 +7,7 @@ namespace Avalonia.Android.Platform;
 internal static class AndroidDataFormatHelper
 {
     private const string AppPrefix = "application/avn-fmt.";
+    private const string MimeTypeImagePng = "image/png";
 
     public static DataFormat MimeTypeToDataFormat(string mimeType)
     {
@@ -16,6 +17,9 @@ internal static class AndroidDataFormatHelper
         if (mimeType == ClipDescription.MimetypeTextUrilist)
             return DataFormat.File;
 
+        if (mimeType.StartsWith("image/", StringComparison.OrdinalIgnoreCase))
+            return DataFormat.Bitmap;
+
         if (mimeType.StartsWith("text/", StringComparison.OrdinalIgnoreCase))
             return DataFormat.FromSystemName<string>(mimeType, AppPrefix);
 
@@ -30,6 +34,9 @@ internal static class AndroidDataFormatHelper
         if (DataFormat.File.Equals(format))
             return ClipDescription.MimetypeTextUrilist;
 
+        if (DataFormat.Bitmap.Equals(format))
+            return MimeTypeImagePng;
+
         return format.ToSystemName(AppPrefix);
     }
 

src/Android/Avalonia.Android/Platform/ClipDataItemToDataTransferItemWrapper.cs

@@ -1,9 +1,13 @@
 using System;
+using System.IO;
 using Android.App;
 using Android.Content;
 using Avalonia.Android.Platform.Storage;
 using Avalonia.Input;
 using Avalonia.Input.Platform;
+using Avalonia.Logging;
+using Avalonia.Media.Imaging;
+using Avalonia.Platform.Storage;
 
 namespace Avalonia.Android.Platform;
 
@@ -15,44 +19,90 @@ namespace Avalonia.Android.Platform;
 internal sealed class ClipDataItemToDataTransferItemWrapper(ClipData.Item item, ClipDataToDataTransferWrapper owner)
     : PlatformDataTransferItem
 {
-    private readonly ClipData.Item _item = item;
-    private readonly ClipDataToDataTransferWrapper _owner = owner;
-
     protected override DataFormat[] ProvideFormats()
-        => _owner.Formats; // There's no "format per item", assume each item handle all formats
+        => owner.Formats; // There's no "format per item", assume each item handle all formats
 
     protected override object? TryGetRawCore(DataFormat format)
     {
         if (DataFormat.Text.Equals(format))
-            return _item.CoerceToText(_owner.Context);
+            return item.CoerceToText(owner.Context);
+
+        if (format is DataFormat<string>)
+            return TryGetString();
 
         if (DataFormat.File.Equals(format))
-        {
-            return _item.Uri is { Scheme: "file" or "content" } fileUri && _owner.Context is Activity activity ?
-                AndroidStorageItem.CreateItem(activity, fileUri) :
-                null;
-        }
+            return TryGetStorageItem();
 
-        if (format is DataFormat<string>)
-            return TryGetAsString();
+        if (DataFormat.Bitmap.Equals(format))
+            return TryGetBitmap();
+
+        if (format is DataFormat<byte[]>)
+            return TryGetBytes();
 
         return null;
     }
 
-    private string? TryGetAsString()
+    private string? TryGetString()
     {
-        if (_item.Text is { } text)
+        if (item.Text is { } text)
             return text;
 
-        if (_item.HtmlText is { } htmlText)
+        if (item.HtmlText is { } htmlText)
             return htmlText;
 
-        if (_item.Uri is { } uri)
+        if (item.Uri is { } uri)
             return uri.ToString();
 
-        if (_item.Intent is { } intent)
+        if (item.Intent is { } intent)
             return intent.ToUri(IntentUriType.Scheme);
 
         return null;
     }
+
+    private IStorageItem? TryGetStorageItem()
+        => item.Uri is { Scheme: "file" or "content" } fileUri && owner.Context is Activity activity ?
+            AndroidStorageItem.CreateItem(activity, fileUri) :
+            null;
+
+    private object? TryGetBitmap()
+    {
+        try
+        {
+            if (TryGetStorageItem() is AndroidStorageFile storageFile)
+            {
+                using var stream = storageFile.OpenRead();
+
+                return new Bitmap(stream);
+            }
+        }
+        catch (Exception ex)
+        {
+            Logger.TryGet(LogEventLevel.Warning, LogArea.AndroidPlatform)
+                ?.Log(this, "Could not get bitmap from clipboard: {Error}", ex.Message);
+        }
+
+        return null;
+    }
+
+    private object? TryGetBytes()
+    {
+        try
+        {
+            if (TryGetStorageItem() is AndroidStorageFile storageFile)
+            {
+                using var stream = storageFile.OpenRead();
+
+                using var mem = new MemoryStream();
+                stream.CopyTo(mem);
+                return mem.ToArray();
+            }
+        }
+        catch (Exception ex)
+        {
+            Logger.TryGet(LogEventLevel.Warning, LogArea.AndroidPlatform)
+                ?.Log(this, "Could not get bytes from clipboard: {Error}", ex.Message);
+        }
+
+        return null;
+    }
 }

src/Android/Avalonia.Android/Platform/ClipDataToDataTransferWrapper.cs

@@ -1,4 +1,5 @@
-using Android.Content;
+using System.Linq;
+using Android.Content;
 using Avalonia.Input;
 using Avalonia.Input.Platform;
 
@@ -23,9 +24,20 @@ internal sealed class ClipDataToDataTransferWrapper(ClipData clipData, Context?
 
         var formats = new DataFormat[count];
 
+        bool hasImage = false;
         for (var i = 0; i < count; ++i)
+        {
             formats[i] = AndroidDataFormatHelper.MimeTypeToDataFormat(clipDescription.GetMimeType(i)!);
 
+            if (!hasImage)
+                hasImage = formats[i].Identifier.StartsWith("image/", System.StringComparison.OrdinalIgnoreCase);
+        }
+
+        if (hasImage)
+        {
+            formats = [.. formats, DataFormat.Bitmap];
+        }
+
         return formats;
     }
 

src/Android/Avalonia.Android/Platform/Storage/AndroidStorageItem.cs

@@ -389,8 +389,10 @@ internal sealed class AndroidStorageFile : AndroidStorageItem, IStorageBookmarkF
     {
     }
 
-    public Task<Stream> OpenReadAsync() => Task.FromResult(OpenContentStream(Activity, Uri, false)
-        ?? throw new InvalidOperationException("Failed to open content stream"));
+    public Task<Stream> OpenReadAsync() => Task.FromResult(OpenRead());
+
+    public Stream OpenRead() => OpenContentStream(Activity, Uri, false)
+        ?? throw new InvalidOperationException("Failed to open content stream");
 
     public Task<Stream> OpenWriteAsync() => Task.FromResult(OpenContentStream(Activity, Uri, true)
         ?? throw new InvalidOperationException("Failed to open content stream"));

src/Avalonia.Base/Input/AsyncDataTransferExtensions.cs

@@ -2,6 +2,7 @@
 using System.Linq;
 using System.Threading.Tasks;
 using Avalonia.Logging;
+using Avalonia.Media.Imaging;
 using Avalonia.Platform.Storage;
 
 namespace Avalonia.Input;
@@ -113,7 +114,7 @@ public static class AsyncDataTransferExtensions
     /// <summary>
     /// Returns a text, if available, from a <see cref="IAsyncDataTransfer"/> instance.
     /// </summary>
-    /// <param name="dataTransfer">The data transfer instance.</param>
+    /// <param name="dataTransfer">The <see cref="IAsyncDataTransfer"/> instance.</param>
     /// <returns>A string, or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.Text"/>.
     public static Task<string?> TryGetTextAsync(this IAsyncDataTransfer dataTransfer)
@@ -122,7 +123,7 @@ public static class AsyncDataTransferExtensions
     /// <summary>
     /// Returns a file, if available, from a <see cref="IAsyncDataTransfer"/> instance.
     /// </summary>
-    /// <param name="dataTransfer">The data transfer instance.</param>
+    /// <param name="dataTransfer">The <see cref="IAsyncDataTransfer"/> instance.</param>
     /// <returns>An <see cref="IStorageItem"/> (file or folder), or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.File"/>.
     public static Task<IStorageItem?> TryGetFileAsync(this IAsyncDataTransfer dataTransfer)
@@ -131,9 +132,18 @@ public static class AsyncDataTransferExtensions
     /// <summary>
     /// Returns a list of files, if available, from a <see cref="IAsyncDataTransfer"/> instance.
     /// </summary>
-    /// <param name="dataTransfer">The data transfer instance.</param>
+    /// <param name="dataTransfer">The <see cref="IAsyncDataTransfer"/> instance.</param>
     /// <returns>An array of <see cref="IStorageItem"/> (files or folders), or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.File"/>.
     public static Task<IStorageItem[]?> TryGetFilesAsync(this IAsyncDataTransfer dataTransfer)
         => dataTransfer.TryGetValuesAsync(DataFormat.File);
+
+    /// <summary>
+    /// Returns a bitmap, if available, from a <see cref="IAsyncDataTransfer"/> instance.
+    /// </summary>
+    /// <param name="dataTransfer">The <see cref="IAsyncDataTransfer"/> instance.</param>
+    /// <returns>A <see cref="Bitmap"/>, or null if the format isn't available.</returns>
+    /// <seealso cref="DataFormat.Bitmap"/>.
+    public static Task<Bitmap?> TryGetBitmapAsync(this IAsyncDataTransfer dataTransfer)
+        => dataTransfer.TryGetValueAsync(DataFormat.Bitmap);
 }

src/Avalonia.Base/Input/AsyncDataTransferItemExtensions.cs

@@ -1,4 +1,5 @@
 using System.Threading.Tasks;
+using Avalonia.Media.Imaging;
 using Avalonia.Platform.Storage;
 
 namespace Avalonia.Input;
@@ -41,7 +42,7 @@ public static class AsyncDataTransferItemExtensions
     /// <summary>
     /// Returns a text, if available, from a <see cref="IAsyncDataTransferItem"/> instance.
     /// </summary>
-    /// <param name="dataTransferItem">The data transfer instance.</param>
+    /// <param name="dataTransferItem">The <see cref="IAsyncDataTransferItem"/> instance.</param>
     /// <returns>A string, or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.Text"/>.
     public static Task<string?> TryGetTextAsync(this IAsyncDataTransferItem dataTransferItem)
@@ -50,9 +51,18 @@ public static class AsyncDataTransferItemExtensions
     /// <summary>
     /// Returns a file, if available, from a <see cref="IAsyncDataTransferItem"/> instance.
     /// </summary>
-    /// <param name="dataTransferItem">The data transfer instance.</param>
+    /// <param name="dataTransferItem">The <see cref="IAsyncDataTransferItem"/> instance.</param>
     /// <returns>An <see cref="IStorageItem"/> (file or folder), or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.File"/>.
     public static Task<IStorageItem?> TryGetFileAsync(this IAsyncDataTransferItem dataTransferItem)
         => dataTransferItem.TryGetValueAsync(DataFormat.File);
+
+    /// <summary>
+    /// Returns a bitmap, if available, from a <see cref="IAsyncDataTransferItem"/> instance.
+    /// </summary>
+    /// <param name="dataTransferItem">The <see cref="IAsyncDataTransferItem"/> instance.</param>
+    /// <returns>A <see cref="Bitmap"/>, or null if the format isn't available.</returns>
+    /// <seealso cref="DataFormat.Bitmap"/>.
+    public static Task<Bitmap?> TryGetBitmapAsync(this IAsyncDataTransferItem dataTransferItem)
+        => dataTransferItem.TryGetValueAsync(DataFormat.Bitmap);
 }

src/Avalonia.Base/Input/DataFormat.cs

@@ -1,4 +1,5 @@
 using System;
+using Avalonia.Media.Imaging;
 using Avalonia.Metadata;
 using Avalonia.Platform.Storage;
 using Avalonia.Utilities;
@@ -32,6 +33,12 @@ public abstract class DataFormat : IEquatable<DataFormat>
     /// </summary>
     public static DataFormat<string> Text { get; } = CreateUniversalFormat<string>("Text");
 
+    /// <summary>
+    /// Gets a data format representing a bitmap.
+    /// Its data type is <see cref="Media.Imaging.Bitmap"/>.
+    /// </summary>
+    public static DataFormat<Bitmap> Bitmap { get; } = CreateUniversalFormat<Bitmap>("Bitmap");
+
     /// <summary>
     /// Gets a data format representing a single file.
     /// Its data type is <see cref="IStorageItem"/>.

src/Avalonia.Base/Input/DataTransferExtensions.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Avalonia.Input.Platform;
+using Avalonia.Media.Imaging;
 using Avalonia.Platform.Storage;
 
 namespace Avalonia.Input;
@@ -104,7 +105,7 @@ public static class DataTransferExtensions
     /// <summary>
     /// Returns a text, if available, from a <see cref="IDataTransfer"/> instance.
     /// </summary>
-    /// <param name="dataTransfer">The data transfer instance.</param>
+    /// <param name="dataTransfer">The <see cref="IDataTransfer"/> instance.</param>
     /// <returns>A string, or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.Text"/>.
     public static string? TryGetText(this IDataTransfer dataTransfer)
@@ -113,7 +114,7 @@ public static class DataTransferExtensions
     /// <summary>
     /// Returns a file, if available, from a <see cref="IDataTransfer"/> instance.
     /// </summary>
-    /// <param name="dataTransfer">The data transfer instance.</param>
+    /// <param name="dataTransfer">The <see cref="IDataTransfer"/> instance.</param>
     /// <returns>An <see cref="IStorageItem"/> (file or folder), or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.File"/>.
     public static IStorageItem? TryGetFile(this IDataTransfer dataTransfer)
@@ -122,9 +123,18 @@ public static class DataTransferExtensions
     /// <summary>
     /// Returns a list of files, if available, from a <see cref="IDataTransfer"/> instance.
     /// </summary>
-    /// <param name="dataTransfer">The data transfer instance.</param>
+    /// <param name="dataTransfer">The <see cref="IDataTransfer"/> instance.</param>
     /// <returns>An array of <see cref="IStorageItem"/> (files or folders), or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.File"/>.
     public static IStorageItem[]? TryGetFiles(this IDataTransfer dataTransfer)
         => dataTransfer.TryGetValues(DataFormat.File);
+
+    /// <summary>
+    /// Returns a bitmap, if available, from a <see cref="IDataTransfer"/> instance.
+    /// </summary>
+    /// <param name="dataTransfer">The <see cref="IDataTransfer"/> instance.</param>
+    /// <returns>A <see cref="Bitmap"/>, or null if the format isn't available.</returns>
+    /// <seealso cref="DataFormat.Bitmap"/>.
+    public static Bitmap? TryGetBitmap(this IDataTransfer dataTransfer)
+        => dataTransfer.TryGetValue(DataFormat.Bitmap);
 }

src/Avalonia.Base/Input/DataTransferItem.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using Avalonia.Media.Imaging;
 using Avalonia.Platform.Storage;
 using Avalonia.Utilities;
 
@@ -158,6 +159,16 @@ public sealed class DataTransferItem : IDataTransferItem, IAsyncDataTransferItem
     public void SetFile(IStorageItem? value)
         => Set(DataFormat.File, value);
 
+    /// <summary>
+    /// Sets the value for the <see cref="DataFormat.Bitmap"/> format.
+    /// </summary>
+    /// <param name="value">
+    /// The value corresponding to the <see cref="DataFormat.Bitmap"/> format.
+    /// If null, the format won't be part of the <see cref="DataTransferItem"/>.
+    /// </param>
+    public void SetBitmap(Bitmap? value)
+        => Set(DataFormat.Bitmap, value);
+
     /// <summary>
     /// Creates a new <see cref="DataTransferItem"/> for a single format with a given value.
     /// </summary>

src/Avalonia.Base/Input/DataTransferItemExtensions.cs

@@ -1,4 +1,5 @@
-using Avalonia.Platform.Storage;
+using Avalonia.Media.Imaging;
+using Avalonia.Platform.Storage;
 
 namespace Avalonia.Input;
 
@@ -40,7 +41,7 @@ public static class DataTransferItemExtensions
     /// <summary>
     /// Returns a text, if available, from a <see cref="IDataTransferItem"/> instance.
     /// </summary>
-    /// <param name="dataTransferItem">The data transfer instance.</param>
+    /// <param name="dataTransferItem">The <see cref="IDataTransferItem"/> instance.</param>
     /// <returns>A string, or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.Text"/>.
     public static string? TryGetText(this IDataTransferItem dataTransferItem)
@@ -49,9 +50,18 @@ public static class DataTransferItemExtensions
     /// <summary>
     /// Returns a file, if available, from a <see cref="IDataTransferItem"/> instance.
     /// </summary>
-    /// <param name="dataTransferItem">The data transfer instance.</param>
+    /// <param name="dataTransferItem">The <see cref="IDataTransferItem"/> instance.</param>
     /// <returns>An <see cref="IStorageItem"/> (file or folder), or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.File"/>.
     public static IStorageItem? TryGetFile(this IDataTransferItem dataTransferItem)
         => dataTransferItem.TryGetValue(DataFormat.File);
+
+    /// <summary>
+    /// Returns a bitmap, if available, from a <see cref="IDataTransferItem"/> instance.
+    /// </summary>
+    /// <param name="dataTransferItem">The <see cref="IDataTransferItem"/> instance.</param>
+    /// <returns>A <see cref="Bitmap"/>, or null if the format isn't available.</returns>
+    /// <seealso cref="DataFormat.Bitmap"/>.
+    public static Bitmap? TryGetBitmap(this IDataTransferItem dataTransferItem)
+        => dataTransferItem.TryGetValue(DataFormat.Bitmap);
 }

src/Avalonia.Base/Input/Platform/ClipboardExtensions.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
+using Avalonia.Media.Imaging;
 using Avalonia.Platform.Storage;
 
 namespace Avalonia.Input.Platform;
@@ -133,12 +134,21 @@ public static class ClipboardExtensions
     /// <summary>
     /// Returns a list of files, if available, from the clipboard.
     /// </summary>
-    /// <param name="clipboard">The data transfer instance.</param>
+    /// <param name="clipboard">The clipboard instance.</param>
     /// <returns>An array of <see cref="IStorageItem"/> (files or folders), or null if the format isn't available.</returns>
     /// <seealso cref="DataFormat.File"/>.
     public static Task<IStorageItem[]?> TryGetFilesAsync(this IClipboard clipboard)
         => clipboard.TryGetValuesAsync(DataFormat.File);
 
+    /// <summary>
+    /// Returns a bitmap, if available, from the clipboard.
+    /// </summary>
+    /// <param name="clipboard">The clipboard instance.</param>
+    /// <returns>A <see cref="Bitmap"/>, or null if the format isn't available.</returns>
+    /// <seealso cref="DataFormat.Bitmap"/>.
+    public static Task<Bitmap?> TryGetBitmapAsync(this IClipboard clipboard)
+        => clipboard.TryGetValueAsync(DataFormat.Bitmap);
+
     /// <summary>
     /// Places a text on the clipboard.
     /// </summary>
@@ -186,4 +196,20 @@ public static class ClipboardExtensions
     /// <seealso cref="DataFormat.File"/>
     public static Task SetFilesAsync(this IClipboard clipboard, IEnumerable<IStorageItem>? files)
         => clipboard.SetValuesAsync(DataFormat.File, files);
+
+    /// <summary>
+    /// Places a bitmap on the clipboard.
+    /// </summary>
+    /// <param name="clipboard">The clipboard instance.</param>
+    /// <param name="bitmap">The bitmap to place on the clipboard.</param>
+    /// <remarks>
+    /// <para>By calling this method, the clipboard will get cleared of any possible previous data.</para>
+    /// <para>
+    /// If <paramref name="bitmap"/> is null, nothing will get placed on the clipboard and this method
+    /// will be equivalent to <see cref="IClipboard.ClearAsync"/>.
+    /// </para>
+    /// </remarks>
+    /// <seealso cref="DataFormat.Bitmap"/>
+    public static Task SetBitmapAsync(this IClipboard clipboard, Bitmap? bitmap)
+        => clipboard.SetValueAsync(DataFormat.Bitmap, bitmap);
 }

src/Avalonia.Native/ClipboardDataFormatHelper.cs

@@ -11,6 +11,7 @@ internal static class ClipboardDataFormatHelper
     // TODO hide native types behind IAvnClipboard abstraction, so managed side won't depend on macOS.
     private const string NSPasteboardTypeString = "public.utf8-plain-text";
     private const string NSPasteboardTypeFileUrl = "public.file-url";
+    private const string NSPasteboardTypePng = "public.png";
     private const string AppPrefix = "net.avaloniaui.app.uti.";
 
     public static DataFormat[] ToDataFormats(IAvnStringArray? nativeFormats, Func<string, bool> isTextFormat)
@@ -38,6 +39,7 @@ internal static class ClipboardDataFormatHelper
         {
             NSPasteboardTypeString => DataFormat.Text,
             NSPasteboardTypeFileUrl => DataFormat.File,
+            NSPasteboardTypePng => DataFormat.Bitmap,
             _ when isTextFormat(nativeFormat) => DataFormat.FromSystemName<string>(nativeFormat, AppPrefix),
             _ => DataFormat.FromSystemName<byte[]>(nativeFormat, AppPrefix)
         };
@@ -50,6 +52,9 @@ internal static class ClipboardDataFormatHelper
         if (DataFormat.File.Equals(format))
             return NSPasteboardTypeFileUrl;
 
+        if (DataFormat.Bitmap.Equals(format))
+            return NSPasteboardTypePng;
+
         return format.ToSystemName(AppPrefix);
     }
 }

src/Avalonia.Native/ClipboardDataTransferItem.cs

@@ -1,10 +1,12 @@
 #nullable enable
 
 using System;
+using System.IO;
 using System.Text;
 using Avalonia.Controls.Platform;
 using Avalonia.Input;
 using Avalonia.Input.Platform;
+using Avalonia.Media.Imaging;
 using Avalonia.Platform.Storage;
 
 namespace Avalonia.Native;
@@ -36,6 +38,9 @@ internal sealed class ClipboardDataTransferItem(ClipboardReadSession session, in
         if (DataFormat.File.Equals(format))
             return TryGetFile(nativeFormat);
 
+        if (DataFormat.Bitmap.Equals(format))
+            return TryGetBitmap(nativeFormat);
+
         if (format is DataFormat<string>)
         {
             if (TryGetString(nativeFormat) is { } stringValue)
@@ -57,6 +62,12 @@ internal sealed class ClipboardDataTransferItem(ClipboardReadSession session, in
         return null;
     }
 
+    private Bitmap? TryGetBitmap(string nativeFormat)
+    {
+        using var bytes = _session.GetItemValueAsBytes(_itemIndex, nativeFormat);
+        return bytes is null ? null : new Bitmap(new MemoryStream(bytes.Bytes, false));
+    }
+    
     private string? TryGetString(string nativeFormat)
     {
         using var text = _session.GetItemValueAsString(_itemIndex, nativeFormat);

src/Avalonia.Native/DataTransferItemToAvnClipboardDataItemWrapper.cs

@@ -6,7 +6,7 @@ using System.Linq;
 using Avalonia.Input;
 using Avalonia.Logging;
 using Avalonia.Native.Interop;
-using Avalonia.Platform.Storage;
+using Avalonia.Utilities;
 
 namespace Avalonia.Native;
 
@@ -33,6 +33,19 @@ internal sealed class DataTransferItemToAvnClipboardDataItemWrapper(IDataTransfe
             if (DataFormat.File.Equals(dataFormat))
                 return _item.TryGetValue(DataFormat.File) is { } file ? new StringValue(file.Path.AbsoluteUri) : null;
 
+            if (DataFormat.Bitmap.Equals(dataFormat))
+            {
+                if (_item.TryGetValue(DataFormat.Bitmap) is { } bitmap)
+                {
+                    var memoryStream = new MemoryStream();
+                    bitmap.Save(memoryStream);
+                    memoryStream.Seek(0, SeekOrigin.Begin);
+                    return new StreamValue(memoryStream);
+                }
+
+                return null;
+            }
+
             if (dataFormat is DataFormat<string> stringFormat)
                 return _item.TryGetValue(stringFormat) is { } stringValue ? new StringValue(stringValue) : null;
 
@@ -70,7 +83,7 @@ internal sealed class DataTransferItemToAvnClipboardDataItemWrapper(IDataTransfe
         IAvnString IAvnClipboardDataValue.AsString()
             => new AvnString(_value);
 
-        int IAvnClipboardDataValue.ByteLength
+        IntPtr IAvnClipboardDataValue.ByteLength
             => throw new InvalidOperationException();
 
         unsafe void IAvnClipboardDataValue.CopyBytesTo(void* buffer)
@@ -87,10 +100,44 @@ internal sealed class DataTransferItemToAvnClipboardDataItemWrapper(IDataTransfe
         IAvnString IAvnClipboardDataValue.AsString()
             => throw new InvalidOperationException();
 
-        int IAvnClipboardDataValue.ByteLength
-            => _value.Length;
+        IntPtr IAvnClipboardDataValue.ByteLength
+            => new(_value.Length);
 
         unsafe void IAvnClipboardDataValue.CopyBytesTo(void* buffer)
             => _value.Span.CopyTo(new Span<byte>(buffer, _value.Length));
     }
+    
+    private sealed class StreamValue(MemoryStream value) : NativeOwned, IAvnClipboardDataValue
+    {
+        private readonly MemoryStream _value = value;
+        private readonly byte[] _buffer = new byte[1024 * 1024];
+
+        int IAvnClipboardDataValue.IsString()
+            => false.AsComBool();
+
+        IAvnString IAvnClipboardDataValue.AsString()
+            => throw new InvalidOperationException();
+
+        IntPtr IAvnClipboardDataValue.ByteLength
+#pragma warning disable CA2020 // overflow in unchecked context
+            => (IntPtr)_value.Length;
+#pragma warning restore CA2020
+
+        unsafe void IAvnClipboardDataValue.CopyBytesTo(void* output)
+        {
+            long totalCopied = 0;
+
+            while (true)
+            {
+                var read = _value.Read(_buffer, 0, _buffer.Length);
+                if (read == 0)
+                    break;
+
+                var destinationSpan = new Span<byte>((byte*)output + totalCopied, read);
+                _buffer.AsSpan(0, read).CopyTo(destinationSpan);
+
+                totalCopied += read;
+            }
+        }
+    }
 }

src/Avalonia.Native/avn.idl

@@ -1007,7 +1007,7 @@ interface IAvnClipboardDataValue : IUnknown
 {
     bool IsString();
     IAvnString* AsString();
-    int GetByteLength();
+    long GetByteLength();
     void CopyBytesTo(void* buffer);
 }
 

src/Avalonia.X11/Clipboard/ClipboardDataFormatHelper.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Text;
+using Avalonia.Controls;
 using Avalonia.Input;
 
 namespace Avalonia.X11.Clipboard;
@@ -8,6 +9,8 @@ internal static class ClipboardDataFormatHelper
 {
     private const string MimeTypeTextUriList = "text/uri-list";
     private const string AppPrefix = "application/avn-fmt.";
+    public const string PngFormatMimeType = "image/png";
+    public const string JpegFormatMimeType = "image/jpeg";
 
     public static DataFormat? ToDataFormat(IntPtr formatAtom, X11Atoms atoms)
     {
@@ -32,14 +35,13 @@ internal static class ClipboardDataFormatHelper
         if (atoms.GetAtomName(formatAtom) is { } atomName)
         {
             return atomName == MimeTypeTextUriList ?
-                DataFormat.File :
-                DataFormat.FromSystemName<byte[]>(atomName, AppPrefix);
+                DataFormat.File : DataFormat.FromSystemName<byte[]>(atomName, AppPrefix);
         }
 
         return null;
     }
 
-    public static IntPtr ToAtom(DataFormat format, IntPtr[] textFormatAtoms, X11Atoms atoms)
+    public static IntPtr ToAtom(DataFormat format, IntPtr[] textFormatAtoms, X11Atoms atoms, DataFormat[] dataFormats)
     {
         if (DataFormat.Text.Equals(format))
             return GetPreferredStringFormatAtom(textFormatAtoms, atoms);
@@ -47,6 +49,28 @@ internal static class ClipboardDataFormatHelper
         if (DataFormat.File.Equals(format))
             return atoms.GetAtom(MimeTypeTextUriList);
 
+        if (DataFormat.Bitmap.Equals(format))
+        {
+            DataFormat? pngFormat = null, jpegFormat = null;
+            foreach (var imageFormat in dataFormats)
+            {
+                if (imageFormat.Identifier is PngFormatMimeType)
+                    pngFormat = imageFormat;
+                else if (imageFormat.Identifier is JpegFormatMimeType)
+                    jpegFormat = imageFormat;
+
+                if (pngFormat != null && jpegFormat != null)
+                    break;
+            }
+
+            var preferredFormat = pngFormat ?? jpegFormat ?? null;
+
+            if (preferredFormat != null)
+                return atoms.GetAtom(preferredFormat.ToSystemName(AppPrefix));
+            else
+                return IntPtr.Zero;
+        }
+
         var systemName = format.ToSystemName(AppPrefix);
         return atoms.GetAtom(systemName);
     }
@@ -59,6 +83,9 @@ internal static class ClipboardDataFormatHelper
         if (DataFormat.File.Equals(format))
             return [atoms.GetAtom(MimeTypeTextUriList)];
 
+        if (DataFormat.Bitmap.Equals(format))
+            return [atoms.GetAtom(PngFormatMimeType)];
+
         var systemName = format.ToSystemName(AppPrefix);
         return [atoms.GetAtom(systemName)];
     }

src/Avalonia.X11/Clipboard/ClipboardDataReader.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.Text;
 using System.Threading.Tasks;
 using Avalonia.Input;
+using Avalonia.Media.Imaging;
 using static Avalonia.X11.XLib;
 
 namespace Avalonia.X11.Clipboard;
@@ -14,7 +15,8 @@ internal sealed class ClipboardDataReader(
     X11Info x11,
     AvaloniaX11Platform platform,
     IntPtr[] textFormatAtoms,
-    IntPtr owner)
+    IntPtr owner,
+    DataFormat[] dataFormats)
     : IDisposable
 {
     private readonly X11Info _x11 = x11;
@@ -30,7 +32,7 @@ internal sealed class ClipboardDataReader(
         if (!IsOwnerStillValid())
             return null;
 
-        var formatAtom = ClipboardDataFormatHelper.ToAtom(format, _textFormatAtoms, _x11.Atoms);
+        var formatAtom = ClipboardDataFormatHelper.ToAtom(format, _textFormatAtoms, _x11.Atoms, dataFormats);
         if (formatAtom == IntPtr.Zero)
             return null;
 
@@ -51,6 +53,13 @@ internal sealed class ClipboardDataReader(
                 null;
         }
 
+        if(DataFormat.Bitmap.Equals(format))
+        {
+            using var data = result.AsStream();
+
+            return new Bitmap(data);
+        }
+
         if (DataFormat.File.Equals(format))
         {
             // text/uri-list might not be supported

src/Avalonia.X11/Clipboard/X11Clipboard.cs

@@ -95,7 +95,14 @@ namespace Avalonia.X11.Clipboard
                 }
                 else if (ClipboardDataFormatHelper.ToDataFormat(target, _x11.Atoms) is { } dataFormat)
                 {
-                    if (_storedDataTransfer is null || !_storedDataTransfer.Contains(dataFormat))
+                    if (_storedDataTransfer is null)
+                        return IntPtr.Zero;
+
+                    // Our default bitmap format is image/png
+                    if (dataFormat.Identifier is "image/png" && _storedDataTransfer.Contains(DataFormat.Bitmap))
+                        dataFormat = DataFormat.Bitmap;
+
+                    if (!_storedDataTransfer.Contains(dataFormat))
                         return IntPtr.Zero;
 
                     if (TryGetDataAsBytes(_storedDataTransfer, dataFormat, target) is not { } bytes)
@@ -145,6 +152,17 @@ namespace Avalonia.X11.Clipboard
                     encoding.GetBytes(text ?? string.Empty) :
                     null;
             }
+
+            if (DataFormat.Bitmap.Equals(format))
+            {
+                if (dataTransfer.TryGetValueAsync(DataFormat.Bitmap).GetAwaiter().GetResult() is not { } bitmap)
+                    return null;
+
+                using var stream = new MemoryStream();
+                bitmap.Save(stream);
+
+                return stream.ToArray();
+            }
             
             if (DataFormat.File.Equals(format))
             {
@@ -286,7 +304,7 @@ namespace Avalonia.X11.Clipboard
                 return null;
 
             // Get the items while we're in an async method. This does not get values, except for DataFormat.File.
-            var reader = new ClipboardDataReader(_x11, _platform, textFormatAtoms, owner);
+            var reader = new ClipboardDataReader(_x11, _platform, textFormatAtoms, owner, dataFormats);
             var items = await CreateItemsAsync(reader, dataFormats);
             return new ClipboardDataTransfer(reader, dataFormats, items);
         }
@@ -302,6 +320,8 @@ namespace Avalonia.X11.Clipboard
             var formats = new List<DataFormat>(formatAtoms.Length);
             List<IntPtr>? textFormatAtoms = null;
 
+            var hasImage = false;
+
             foreach (var formatAtom in formatAtoms)
             {
                 if (ClipboardDataFormatHelper.ToDataFormat(formatAtom, _x11.Atoms) is not { } format)
@@ -317,9 +337,20 @@ namespace Avalonia.X11.Clipboard
                     textFormatAtoms.Add(formatAtom);
                 }
                 else
+                {
                     formats.Add(format);
+
+                    if(!hasImage)
+                    {
+                        if (format.Identifier is ClipboardDataFormatHelper.JpegFormatMimeType or ClipboardDataFormatHelper.PngFormatMimeType)
+                            hasImage = true;
+                    }
+                }
             }
 
+            if (hasImage)
+                formats.Add(DataFormat.Bitmap);
+
             return (formats.ToArray(), textFormatAtoms?.ToArray() ?? []);
         }
 

src/Browser/Avalonia.Browser/BrowserClipboardDataTransferItem.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 using System.Runtime.InteropServices.JavaScript;
 using System.Threading.Tasks;
 using Avalonia.Browser.Interop;
@@ -22,8 +23,10 @@ internal sealed class BrowserClipboardDataTransferItem(JSObject readableDataItem
 
     protected override async Task<object?> TryGetRawCoreAsync(DataFormat format)
     {
-        var formatString = BrowserDataFormatHelper.ToBrowserFormat(format);
-        var value = await InputHelper.TryGetReadableDataItemValueAsync(_readableDataItem, formatString).ConfigureAwait(false);
+        string formatString = BrowserDataFormatHelper.ToBrowserFormat(format);
+
+        var value = await InputHelper.TryGetReadableDataItemValueAsync(_readableDataItem, formatString)
+            .ConfigureAwait(false);
         return BrowserDataTransferHelper.TryGetValue(value, format);
     }
 

src/Browser/Avalonia.Browser/BrowserDataFormatHelper.cs

@@ -7,6 +7,7 @@ internal static class BrowserDataFormatHelper
 {
     private const string FormatTextPlain = "text/plain";
     private const string FormatFiles = "Files";
+    private const string FormatImage = "image/png";
     private const string AppPrefix = "application/avn-fmt.";
 
     public static DataFormat ToDataFormat(string formatString)
@@ -29,6 +30,9 @@ internal static class BrowserDataFormatHelper
         if (DataFormat.File.Equals(format))
             return FormatFiles;
 
+        if (DataFormat.Bitmap.Equals(format))
+            return FormatImage;
+
         return format.ToSystemName(AppPrefix);
     }
 }

src/Browser/Avalonia.Browser/BrowserDataTransferHelper.cs

@@ -1,8 +1,10 @@
-using System.Runtime.InteropServices.JavaScript;
+using System.IO;
+using System.Runtime.InteropServices.JavaScript;
 using System.Text;
 using Avalonia.Browser.Interop;
 using Avalonia.Browser.Storage;
 using Avalonia.Input;
+using Avalonia.Media.Imaging;
 using Avalonia.Platform.Storage;
 
 namespace Avalonia.Browser;
@@ -13,8 +15,17 @@ internal static class BrowserDataTransferHelper
     {
         var formatStrings = InputHelper.GetReadableDataItemFormats(readableDataItem);
         var formats = new DataFormat[formatStrings.Length];
+        var hasSupportedImage = false;
         for (var i = 0; i < formatStrings.Length; ++i)
-            formats[i] = BrowserDataFormatHelper.ToDataFormat(formatStrings[i]);
+        {
+            var formatString = formatStrings[i];
+            hasSupportedImage = formatString is "image/png";
+            formats[i] = BrowserDataFormatHelper.ToDataFormat(formatString);
+        }
+
+        if (hasSupportedImage)
+            formats = [..formats, DataFormat.Bitmap];
+
         return formats;
     }
 
@@ -47,6 +58,17 @@ internal static class BrowserDataTransferHelper
             };
         }
 
+        if (DataFormat.Bitmap.Equals(format))
+        {
+            if (data is byte[] bytes)
+            {
+                using var stream = new MemoryStream(bytes);
+                return new Bitmap(stream);
+            }
+
+            return null;
+        }
+
         if (format is DataFormat<byte[]>)
         {
             return data switch

src/Browser/Avalonia.Browser/ClipboardImpl.cs

@@ -1,4 +1,5 @@
 using System;
+using System.IO;
 using System.Runtime.InteropServices.JavaScript;
 using System.Threading.Tasks;
 using Avalonia.Input;
@@ -51,6 +52,21 @@ internal sealed class ClipboardImpl : IClipboardImpl
                     continue;
                 }
 
+                if(DataFormat.Bitmap.Equals(format))
+                {
+                    var bitmap = await dataTransferItem.TryGetValueAsync(DataFormat.Bitmap);
+                    if (bitmap != null)
+                    {
+                        using var stream = new MemoryStream();
+                        bitmap.Save(stream);
+
+                        writeableItem ??= CreateWriteableClipboardItem(source);
+                        AddBytesToWriteableClipboardItem(writeableItem, formatString, stream.ToArray());
+                    }
+
+                    continue;
+                }
+
                 if (format is DataFormat<string> stringFormat)
                 {
                     var stringValue = await dataTransferItem.TryGetValueAsync(stringFormat);

src/Windows/Avalonia.Win32/ClipboardFormatRegistry.cs

@@ -1,8 +1,9 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.ComponentModel;
 using Avalonia.Input;
-using Avalonia.Win32.Interop;
 using Avalonia.Utilities;
+using Avalonia.Win32.Interop;
 
 namespace Avalonia.Win32
 {
@@ -10,7 +11,10 @@ namespace Avalonia.Win32
     {
         private const int MaxFormatNameLength = 260;
         private const string AppPrefix = "avn-app-fmt:";
-
+        public const string PngFormatMimeType = "image/png";
+        public const string JpegFormatMimeType = "image/jpeg";
+        public const string BitmapFormat = "CF_BITMAP";
+        public const string DibFormat = "CF_DIB";
         private static readonly List<(DataFormat Format, ushort Id)> s_formats = [];
 
         static ClipboardFormatRegistry()
@@ -18,6 +22,7 @@ namespace Avalonia.Win32
             AddDataFormat(DataFormat.Text, (ushort)UnmanagedMethods.ClipboardFormat.CF_UNICODETEXT);
             AddDataFormat(DataFormat.Text, (ushort)UnmanagedMethods.ClipboardFormat.CF_TEXT);
             AddDataFormat(DataFormat.File, (ushort)UnmanagedMethods.ClipboardFormat.CF_HDROP);
+            AddDataFormat(DataFormat.Bitmap, (ushort)UnmanagedMethods.ClipboardFormat.CF_DIB);
         }
 
         private static void AddDataFormat(DataFormat format, ushort id)
@@ -28,6 +33,8 @@ namespace Avalonia.Win32
             var buffer = StringBuilderCache.Acquire(MaxFormatNameLength);
             if (UnmanagedMethods.GetClipboardFormatName(id, buffer, buffer.Capacity) > 0)
                 return StringBuilderCache.GetStringAndRelease(buffer);
+            if (Enum.IsDefined(typeof(UnmanagedMethods.ClipboardFormat), (int)id))
+                return Enum.GetName(typeof(UnmanagedMethods.ClipboardFormat), (int)id)!;
             return $"Unknown_Format_{id}";
         }
 
@@ -52,6 +59,32 @@ namespace Avalonia.Win32
         {
             lock (s_formats)
             {
+                if (DataFormat.Bitmap.Equals(format))
+                {
+                    (DataFormat, ushort)? pngFormat = null;
+                    (DataFormat, ushort)? jpgFormat = null;
+                    (DataFormat, ushort)? dibFormat = null;
+                    (DataFormat, ushort)? bitFormat = null;
+
+                    foreach (var currentFormat in s_formats)
+                    {
+                        if (currentFormat.Id == (ushort)UnmanagedMethods.ClipboardFormat.CF_DIB)
+                            dibFormat = currentFormat;
+                        else if (currentFormat.Id == (ushort)UnmanagedMethods.ClipboardFormat.CF_BITMAP)
+                            bitFormat = currentFormat;
+                        else if (currentFormat.Format.Identifier == PngFormatMimeType)
+                            pngFormat = currentFormat;
+                        else if (currentFormat.Format.Identifier == JpegFormatMimeType)
+                            jpgFormat = currentFormat;
+                    }
+                    var imageFormatId = dibFormat?.Item2 ?? bitFormat?.Item2 ?? pngFormat?.Item2 ?? jpgFormat?.Item2 ?? 0;
+
+                    if(imageFormatId != 0)
+                    {
+                        return imageFormatId;
+                    }
+                }
+
                 for (var i = 0; i < s_formats.Count; ++i)
                 {
                     if (s_formats[i].Format.Equals(format))

src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs

@@ -6,9 +6,9 @@ using System.Diagnostics.CodeAnalysis;
 using System.Runtime.InteropServices;
 using System.Runtime.InteropServices.ComTypes;
 using System.Text;
+using MicroCom.Runtime;
 using Windows.Win32;
 using Windows.Win32.Graphics.Gdi;
-using MicroCom.Runtime;
 
 // ReSharper disable InconsistentNaming
 #pragma warning disable 169, 649
@@ -1074,6 +1074,17 @@ namespace Avalonia.Win32.Interop
             public byte rgbReserved;
         }
 
+        public struct BITMAP
+        {
+            public int bmType;
+            public int bmWidth;
+            public int bmHeight;
+            public int bmWidthBytes;
+            public ushort bmPlanes;
+            public short bmBitsPixel;
+            public IntPtr bmBits;
+        }
+
         [StructLayout(LayoutKind.Sequential)]
         public struct BITMAPINFOHEADER
         {
@@ -1688,6 +1699,10 @@ namespace Avalonia.Win32.Interop
         [DllImport("gdi32.dll")]
         public static extern IntPtr CreateBitmap(int width, int height, int planes, int bitCount, IntPtr data);
         [DllImport("gdi32.dll")]
+        public static extern int GetObject(IntPtr h, int c, IntPtr pv);
+        [DllImport("gdi32.dll")]
+        public static extern int GetBitmapDimensionEx(IntPtr hbit, ref SIZE lpsize);
+        [DllImport("gdi32.dll")]
         public static extern int DeleteObject(IntPtr hObject);
         [DllImport("gdi32.dll", SetLastError = true)]
         public static extern IntPtr CreateCompatibleDC(IntPtr hdc);
@@ -1703,10 +1718,15 @@ namespace Avalonia.Win32.Interop
         [DllImport("gdi32.dll")]
         public static extern int SetPixelFormat(IntPtr hdc, int iPixelFormat, ref PixelFormatDescriptor pfd);
 
-
         [DllImport("gdi32.dll")]
         public static extern int DescribePixelFormat(IntPtr hdc, int iPixelFormat, int bytes, ref PixelFormatDescriptor pfd);
 
+        [DllImport("gdi32.dll")]
+        public static extern int StretchDIBits(IntPtr hdc, int xDest, int yDest, int DestWidth, int DestHeight, int xSrc, int ySrc, int SrcWidth, int SrcHeight, IntPtr lpBits, [In] ref BITMAPINFO lpbmi, uint iUsage, uint rop);
+
+        [DllImport("gdi32.dll")]
+        public static extern int StretchBlt(IntPtr hdc, int xDest, int yDest, int DestWidth, int DestHeight, IntPtr hdcSrc, int xSrc, int ySrc, int SrcWidth, int SrcHeight, uint rop);
+
         [DllImport("gdi32.dll")]
         public static extern bool SwapBuffers(IntPtr hdc);
 
@@ -2193,7 +2213,7 @@ namespace Avalonia.Win32.Interop
             /// <summary>
             /// A memory object containing a BITMAPINFO structure followed by the bitmap bits.
             /// </summary>
-            CF_DIB = 3,
+            CF_DIB = 8,
             /// <summary>
             /// Unicode text format. Each line ends with a carriage return/linefeed (CR-LF) combination. A null character signals the end of the data.
             /// </summary>

src/Windows/Avalonia.Win32/OleDataObjectHelper.cs

@@ -1,16 +1,19 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Runtime.InteropServices.ComTypes;
 using Avalonia.Input;
 using Avalonia.Logging;
+using Avalonia.Media.Imaging;
 using Avalonia.Platform.Storage;
 using Avalonia.Platform.Storage.FileIO;
 using Avalonia.Utilities;
+using Avalonia.Win32.Interop;
+using static Avalonia.Win32.Interop.UnmanagedMethods;
 using FORMATETC = Avalonia.Win32.Interop.UnmanagedMethods.FORMATETC;
 using STGMEDIUM = Avalonia.Win32.Interop.UnmanagedMethods.STGMEDIUM;
-using static Avalonia.Win32.Interop.UnmanagedMethods;
 
 namespace Avalonia.Win32;
 
@@ -19,6 +22,8 @@ namespace Avalonia.Win32;
 /// </summary>
 internal static class OleDataObjectHelper
 {
+    private const int SRCCOPY = 0x00CC0020;
+
     public static FORMATETC ToFormatEtc(this DataFormat format)
         => new()
         {
@@ -37,15 +42,36 @@ internal static class OleDataObjectHelper
             return null;
 
         var medium = new STGMEDIUM();
-        if (oleDataObject.GetData(&formatEtc, &medium) != (uint)HRESULT.S_OK)
-            return null;
+        var result = oleDataObject.GetData(&formatEtc, &medium);
+        if (result != (uint)HRESULT.S_OK)
+        {
+            if (result == DV_E_TYMED)
+            {
+                formatEtc.tymed = TYMED.TYMED_GDI;
+
+                if (oleDataObject.GetData(&formatEtc, &medium) != (uint)HRESULT.S_OK)
+                {
+                    return null;
+                }
+            }
+            else
+                return null;
+        }
 
         try
         {
-            if (medium.tymed == TYMED.TYMED_HGLOBAL && medium.unionmember != IntPtr.Zero)
+            if (medium.unionmember != IntPtr.Zero)
             {
-                var hGlobal = medium.unionmember;
-                return ReadDataFromHGlobal(format, hGlobal);
+                if (medium.tymed == TYMED.TYMED_HGLOBAL)
+                {
+                    var hGlobal = medium.unionmember;
+                    return ReadDataFromHGlobal(format, hGlobal, formatEtc);
+                }
+                else if (medium.tymed == TYMED.TYMED_GDI)
+                {
+                    var bitmapHandle = medium.unionmember;
+                    return ReadDataFromGdi(bitmapHandle);
+                }
             }
         }
         finally
@@ -56,7 +82,84 @@ internal static class OleDataObjectHelper
         return null;
     }
 
-    public static object? ReadDataFromHGlobal(DataFormat format, IntPtr hGlobal)
+    private static unsafe object? ReadDataFromGdi(nint bitmapHandle)
+    {
+        var bitmap = new BITMAP();
+        unsafe
+        {
+            var pBitmap = &bitmap;
+            if ((uint)GetObject(bitmapHandle, Marshal.SizeOf(bitmap), (IntPtr)pBitmap) == 0)
+                return null;
+
+            var bitmapInfoHeader = new BITMAPINFOHEADER()
+            {
+                biWidth = bitmap.bmWidth,
+                biHeight = bitmap.bmHeight,
+                biPlanes = bitmap.bmPlanes,
+                biBitCount = 32,
+                biCompression = 0,
+                biSizeImage = (uint)(bitmap.bmWidth * 4 * Math.Abs(bitmap.bmHeight))
+            };
+
+            bitmapInfoHeader.Init();
+
+            IntPtr destHdc = IntPtr.Zero, compatDc = IntPtr.Zero, section = IntPtr.Zero, sourceHdc = IntPtr.Zero, srcCompatHdc = IntPtr.Zero;
+
+            try
+            {
+                destHdc = GetDC(IntPtr.Zero);
+                if (destHdc == IntPtr.Zero)
+                    return null;
+
+                compatDc = CreateCompatibleDC(destHdc);
+                if (compatDc == IntPtr.Zero)
+                    return null;
+
+                section = CreateDIBSection(compatDc, ref bitmapInfoHeader, 0, out var lbBits, IntPtr.Zero, 0);
+                if (section == IntPtr.Zero)
+                    return null;
+
+                SelectObject(compatDc, section);
+                sourceHdc = GetDC(IntPtr.Zero);
+                if (sourceHdc == IntPtr.Zero)
+                    return null;
+
+                srcCompatHdc = CreateCompatibleDC(sourceHdc);
+                if (srcCompatHdc == IntPtr.Zero)
+                    return null;
+
+                SelectObject(srcCompatHdc, bitmapHandle);
+
+                if (StretchBlt(compatDc, 0, bitmapInfoHeader.biHeight, bitmapInfoHeader.biWidth, -bitmapInfoHeader.biHeight, srcCompatHdc, 0, 0, bitmap.bmWidth, bitmap.bmHeight, SRCCOPY) != 0)
+                    return new Bitmap(Platform.PixelFormats.Bgra8888,
+                        Platform.AlphaFormat.Opaque,
+                        lbBits,
+                        new PixelSize(bitmapInfoHeader.biWidth, bitmapInfoHeader.biHeight),
+                        new Vector(96, 96),
+                        bitmapInfoHeader.biWidth * 4);
+            }
+            finally
+            {
+                if (sourceHdc != IntPtr.Zero)
+                    ReleaseDC(IntPtr.Zero, sourceHdc);
+
+                if (srcCompatHdc != IntPtr.Zero)
+                    ReleaseDC(IntPtr.Zero, srcCompatHdc);
+
+                if (compatDc != IntPtr.Zero)
+                    ReleaseDC(IntPtr.Zero, compatDc);
+
+                if (destHdc != IntPtr.Zero)
+                    ReleaseDC(IntPtr.Zero, destHdc);
+
+                if (section != IntPtr.Zero)
+                    DeleteObject(section);
+            }
+            return null;
+        }
+    }
+
+    public unsafe static object? ReadDataFromHGlobal(DataFormat format, IntPtr hGlobal, FORMATETC formatEtc)
     {
         if (DataFormat.Text.Equals(format))
             return ReadStringFromHGlobal(hGlobal);
@@ -69,6 +172,85 @@ internal static class OleDataObjectHelper
                 .ToArray();
         }
 
+        if (DataFormat.Bitmap.Equals(format))
+        {
+            if (formatEtc.cfFormat == (ushort)ClipboardFormat.CF_DIB)
+            {
+                var data = ReadBytesFromHGlobal(hGlobal);
+                fixed (byte* ptr = data)
+                {
+                    var bitmapInfo = Marshal.PtrToStructure<BITMAPINFO>((IntPtr)ptr);
+
+                    var bitmapInfoHeader = new BITMAPINFOHEADER()
+                    {
+                        biWidth = bitmapInfo.biWidth,
+                        biHeight = bitmapInfo.biHeight,
+                        biPlanes = bitmapInfo.biPlanes,
+                        biBitCount = 32,
+                        biCompression = 0,
+                        biSizeImage = (uint)(bitmapInfo.biWidth * 4 * Math.Abs(bitmapInfo.biHeight))
+                    };
+
+                    bitmapInfoHeader.Init();
+
+                    IntPtr hdc = IntPtr.Zero, compatDc = IntPtr.Zero, section = IntPtr.Zero;
+                    try
+                    {
+                        hdc = GetDC(IntPtr.Zero);
+                        if (hdc == IntPtr.Zero)
+                            return null;
+
+                        compatDc = CreateCompatibleDC(hdc);
+                        if (compatDc == IntPtr.Zero)
+                            return null;
+
+                        section = CreateDIBSection(compatDc, ref bitmapInfoHeader, 0, out var lbBits, IntPtr.Zero, 0);
+                        if (section == IntPtr.Zero)
+                            return null;
+
+                        SelectObject(compatDc, section);
+                        if (StretchDIBits(compatDc,
+                                0,
+                                bitmapInfo.biHeight,
+                                bitmapInfo.biWidth,
+                                -bitmapInfo.biHeight,
+                                0,
+                                0,
+                                bitmapInfoHeader.biWidth,
+                                bitmapInfoHeader.biHeight,
+                                (IntPtr)(ptr + bitmapInfo.biSize),
+                                ref bitmapInfo,
+                                0,
+                                SRCCOPY
+                                ) != 0)
+                            return new Bitmap(Platform.PixelFormats.Bgra8888,
+                                Platform.AlphaFormat.Opaque,
+                                lbBits,
+                                new PixelSize(bitmapInfoHeader.biWidth, bitmapInfoHeader.biHeight),
+                                new Vector(96, 96),
+                                bitmapInfoHeader.biWidth * 4);
+                    }
+                    finally
+                    {
+                        if (section != IntPtr.Zero)
+                            DeleteObject(section);
+
+                        if (compatDc != IntPtr.Zero)
+                            ReleaseDC(IntPtr.Zero, compatDc);
+
+                        if (hdc != IntPtr.Zero)
+                            ReleaseDC(IntPtr.Zero, hdc);
+                    }
+                }
+            }
+            else
+            {
+                var data = ReadBytesFromHGlobal(hGlobal);
+                var stream = new MemoryStream(data);
+                return new Bitmap(stream);
+            }
+        }
+
         if (format is DataFormat<string>)
             return ReadStringFromHGlobal(hGlobal);
 
@@ -126,7 +308,7 @@ internal static class OleDataObjectHelper
         }
     }
 
-    public static uint WriteDataToHGlobal(IDataTransfer dataTransfer, DataFormat format, ref IntPtr hGlobal)
+    public unsafe static uint WriteDataToHGlobal(IDataTransfer dataTransfer, DataFormat format, ref IntPtr hGlobal)
     {
         if (DataFormat.Text.Equals(format))
         {
@@ -145,6 +327,42 @@ internal static class OleDataObjectHelper
             return WriteFileNamesToHGlobal(ref hGlobal, fileNames);
         }
 
+        if (DataFormat.Bitmap.Equals(format))
+        {
+            var bitmap = dataTransfer.TryGetValue(DataFormat.Bitmap);
+            if (bitmap != null)
+            {
+                var pixelSize = bitmap.PixelSize;
+                var stride = ((bitmap.Format?.BitsPerPixel ?? 0) / 8) * pixelSize.Width;
+                var buffer = new byte[stride * pixelSize.Height];
+                fixed (byte* bytes = buffer)
+                {
+                    bitmap.CopyPixels(new PixelRect(pixelSize), (IntPtr)bytes, buffer.Length, stride);
+
+                    var infoHeader = new BITMAPINFOHEADER()
+                    {
+                        biSizeImage = (uint)buffer.Length,
+                        biWidth = pixelSize.Width,
+                        biHeight = -pixelSize.Height,
+                        biBitCount = (ushort)(bitmap.Format?.BitsPerPixel ?? 0),
+                        biPlanes = 1,
+                        biCompression = (uint)BitmapCompressionMode.BI_RGB
+                    };
+                    infoHeader.Init();
+
+                    var imageData = new byte[infoHeader.biSize + infoHeader.biSizeImage];
+
+                    fixed (byte* image = imageData)
+                    {
+                        Marshal.StructureToPtr(infoHeader, (IntPtr)image, false);
+                        new Span<byte>(bytes, buffer.Length).CopyTo(new Span<byte>((image + infoHeader.biSize), buffer.Length));
+
+                        return WriteBytesToHGlobal(ref hGlobal, imageData);
+                    }
+                }
+            }
+        }
+
         if (format is DataFormat<string> stringFormat)
         {
             return dataTransfer.TryGetValue(stringFormat) is { } stringValue ?

src/Windows/Avalonia.Win32/OleDataObjectToDataTransferWrapper.cs

@@ -32,6 +32,25 @@ internal sealed class OleDataObjectToDataTransferWrapper(Win32Com.IDataObject ol
         while (Next(enumFormat) is { } format)
             formats.Add(format);
 
+        bool hasSupportedFormat = false;
+
+        foreach (var format in formats)
+        {
+            if (format.Identifier is ClipboardFormatRegistry.DibFormat 
+                or ClipboardFormatRegistry.BitmapFormat 
+                or ClipboardFormatRegistry.PngFormatMimeType 
+                or ClipboardFormatRegistry.JpegFormatMimeType)
+            {
+                hasSupportedFormat = true;
+                break;
+            }
+        }
+
+        if (hasSupportedFormat)
+        {
+            formats.Add(DataFormat.Bitmap);
+        }
+
         return formats.ToArray();
 
         static unsafe DataFormat? Next(IEnumFORMATETC enumFormat)

src/iOS/Avalonia.iOS/Clipboard/ClipboardDataFormatHelper.cs

@@ -8,6 +8,10 @@ internal static class ClipboardDataFormatHelper
 {
     private const string UTTypeUTF8PlainText = "public.utf8-plain-text";
     private const string UTTypeFileUrl = "public.file-url";
+    internal const string UTTypeImage = "public.image";
+    internal const string UTTypePng = "public.png";
+    internal const string UTTypeJpeg = "public.jpeg";
+    internal const string UTTypeTiff = "public.tiff";
     private const string AppPrefix = "net.avaloniaui.app.uti.";
 
     public static DataFormat ToDataFormat(string type)
@@ -16,6 +20,7 @@ internal static class ClipboardDataFormatHelper
         {
             UTTypeUTF8PlainText => DataFormat.Text,
             UTTypeFileUrl => DataFormat.File,
+            UTTypeImage or UTTypePng or UTTypeJpeg or UTTypeTiff => DataFormat.Bitmap,
             _ when IsTextUti(type) => DataFormat.FromSystemName<string>(type, AppPrefix),
             _ => DataFormat.FromSystemName<byte[]>(type, AppPrefix)
         };
@@ -29,6 +34,10 @@ internal static class ClipboardDataFormatHelper
         if (DataFormat.File.Equals(format))
             return UTTypeFileUrl;
 
+        if (DataFormat.Bitmap.Equals(format))
+            // Avalonia writes images as PNGs to the clipboard for iOS/macOS.
+            return UTTypePng;
+
         return format.ToSystemName(AppPrefix);
     }
 

src/iOS/Avalonia.iOS/Clipboard/ClipboardImpl.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Threading.Tasks;
 using Avalonia.Input;
 using Avalonia.Input.Platform;
@@ -90,6 +91,18 @@ internal sealed class ClipboardImpl(UIPasteboard pasteboard)
             return file is null ? null : (NSString)file.Path.AbsoluteUri;
         }
 
+        if (format.Equals(DataFormat.Bitmap))
+        {
+            var bitmap = await dataTransferItem.TryGetValueAsync(DataFormat.Bitmap);
+            if (bitmap is null)
+                return null;
+            using var memoryStream = new MemoryStream();
+            bitmap.Save(memoryStream, 100);
+            memoryStream.Seek(0, SeekOrigin.Begin);
+            using var data = NSData.FromStream(memoryStream)!;
+            return UIImage.LoadFromData(data);
+        }
+
         if (format is DataFormat<string> stringFormat)
         {
             var stringValue = await dataTransferItem.TryGetValueAsync(stringFormat);

src/iOS/Avalonia.iOS/Clipboard/PasteboardItemToDataTransferItemWrapper.cs

@@ -3,7 +3,9 @@ using System.Text;
 using Avalonia.Input;
 using Avalonia.Input.Platform;
 using Avalonia.iOS.Storage;
+using Avalonia.Media.Imaging;
 using Foundation;
+using UIKit;
 
 namespace Avalonia.iOS.Clipboard;
 
@@ -23,6 +25,45 @@ internal sealed class PasteboardItemToDataTransferItemWrapper(NSDictionary item)
 
     protected override object? TryGetRawCore(DataFormat format)
     {
+        // Handle images specially without ToSystemType, as we may have multiple UTI types for images.
+        if (DataFormat.Bitmap.Equals(format))
+        {
+            NSObject? imageValue;
+
+            if (_item.TryGetValue((NSString)ClipboardDataFormatHelper.UTTypePng, out imageValue)
+                || _item.TryGetValue((NSString)ClipboardDataFormatHelper.UTTypeJpeg, out imageValue))
+            {
+                // keep imageValue as is, it can be either UIImage or NSData, in either case Bitmap can handle it directly.
+            }
+            else if (_item.TryGetValue((NSString)ClipboardDataFormatHelper.UTTypeImage, out imageValue)
+                     || _item.TryGetValue((NSString)ClipboardDataFormatHelper.UTTypeTiff, out imageValue))
+            {
+                // if it's NSData, we need to convert it to UIImage first, as TIFF is not directly supported by Bitmap.
+                if (imageValue is NSData imageData)
+                {
+                    imageValue = UIImage.LoadFromData(imageData);
+                    imageData.Dispose();
+                }
+            }
+
+            switch (imageValue)
+            {
+                case UIImage image:
+                {
+                    using var pngData = image.AsPNG()!;
+                    using var pngStream = pngData.AsStream();
+                    return new Bitmap(pngStream);
+                }
+                case NSData data:
+                {
+                    using var dataStream = data.AsStream();
+                    return new Bitmap(dataStream);
+                }
+                default:
+                    return null;
+            }
+        }
+
         var type = ClipboardDataFormatHelper.ToSystemType(format);
         if (!_item.TryGetValue((NSString)type, out var value))
             return null;
@@ -42,7 +83,7 @@ internal sealed class PasteboardItemToDataTransferItemWrapper(NSDictionary item)
         return null;
     }
 
-    private static unsafe string? TryConvertToString(NSObject value)
+    private static unsafe string? TryConvertToString(NSObject? value)
         => value switch
         {
             NSString str => str,
@@ -50,7 +91,7 @@ internal sealed class PasteboardItemToDataTransferItemWrapper(NSDictionary item)
             _ => null
         };
 
-    private static byte[]? TryConvertToBytes(NSObject value)
+    private static byte[]? TryConvertToBytes(NSObject? value)
         => value switch
         {
             NSData data => data.ToArray(),