Aspose.PSD for .Net是高級PSD和入門級AI文件格式操作API，允許創建和編輯Photoshop文件，并提供更新圖層屬性，添加水印，執行圖形操作或將一種文件格式轉換為另一種文件的功能，沒有任何Adobe Photoshop或Adobe Illustrator依賴項。

令人興奮的是，.NET版Aspose.PSD迎來了v20.7的最新更新！新增了如下兩大新功能和1個增強：

• 支持LnkE資源
• 支持britResource（亮度/對比度調整層資源）
• 嘗試打開不支持的格式作為圖像時更改異常消息

>>你可以點擊這里下載Aspose.PSD for .NET v20.7測試體驗

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具體更新內容

PSDNET-392-支持lnk2 / lnk3資源（智能對象層資源）

void AssertAreEqual(object expected, object actual)
 {
     if (!object.Equals(actual, expected))
     {
         throw new FormatException(string.Format("Actual value {0} are not equal to expected {1}.", actual, expected));
     }
 }
 
 object[] Lnk2ResourceSupportCases = new object[]
 {
     new object[]
     {
         "00af34a0-a90b-674d-a821-73ee508c5479",
         "rgb8_2x2.png",
         "png",
         string.Empty,
         0x53,
         0d,
         string.Empty,
         7,
         true,
         0x124L,
         0x74cL
     }
 };
 
 object[] LayeredLnk2ResourceSupportCases = new object[]
 {
     new object[]
     {
         "69ac1c0d-1b74-fd49-9c7e-34a7aa6299ef",
         "huset.jpg",
         "JPEG",
         string.Empty,
         0x9d46,
         0d,
         "xmp.did:0F94B342065B11E395B1FD506DED6B07",
         7,
         true,
         0x9E60L,
         0xc60cL
     },
     new object[]
     {
         "5a7d1965-0eae-b24e-a82f-98c7646424c2",
         "panama-papers.jpg",
         "JPEG",
         string.Empty,
         0xF56B,
         0d,
         "xmp.did:BDE940CBF51B11E59D759CDA690663E3",
         7,
         true,
         0xF694L,
         0x10dd4L
     },
 };
 
 object[] LayeredLnk3ResourceSupportCases = new object[]
 {
     new object[]
     {
         "2fd7ba52-0221-de4c-bdc4-1210580c6caa",
         "panama-papers.jpg",
         "JPEG",
         string.Empty,
         0xF56B,
         0d,
         "xmp.did:BDE940CBF51B11E59D759CDA690663E3",
         7,
         true,
         0xF694l,
         0x10dd4L
     },
     new object[]
     {
         "372d52eb-5825-8743-81a7-b6f32d51323d",
         "huset.jpg",
         "JPEG",
         string.Empty,
         0x9d46,
         0d,
         "xmp.did:0F94B342065B11E395B1FD506DED6B07",
         7,
         true,
         0x9E60L,
         0xc60cL
     },
 };
 
 var basePath = @"PSDNET392_1\";
 const string Output = "Output\\";
 
 // Saves the data of a smart object in PSD file to a file.
 void SaveSmartObjectData(string prefix, string fileName, byte[] data)
 {
     var filePath = basePath + prefix + "_"  + fileName;
 
     using (var container = FileStreamContainer.CreateFileStream(filePath, false))
     {
         container.Write(data);
     }
 }
 
 // Loads the new data for a smart object in PSD file.
 byte[] LoadNewData(string fileName)
 {
     using (var container = FileStreamContainer.OpenFileStream(basePath + fileName))
     {
         return container.ToBytes();
     }
 }
  
 // Gets and sets properties of the PSD Lnk2 / Lnk3 Resource and its liFD data sources in PSD image
 void ExampleOfLnk2ResourceSupport(
     string fileName,
     int dataSourceCount,
     int length,
     int newLength,
     object[] dataSourceExpectedValues)
 {
     using (PsdImage image = (PsdImage)Image.Load(basePath + fileName))
     {
         Lnk2Resource lnk2Resource = null;
         foreach (var resource in image.GlobalLayerResources)
         {
             lnk2Resource = resource as Lnk2Resource;
             if (lnk2Resource != null)
             {
                 AssertAreEqual(lnk2Resource.DataSourceCount, dataSourceCount);
                 AssertAreEqual(lnk2Resource.Length, length);
                 AssertAreEqual(lnk2Resource.IsEmpty, false);
 
                 for (int i = 0; i < lnk2Resource.DataSourceCount; i++) { LiFdDataSource lifdSource = lnk2Resource[i]; object[] expected = (object[])dataSourceExpectedValues[i]; AssertAreEqual(LinkDataSourceType.liFD, lifdSource.Type); AssertAreEqual(new Guid((string)expected[0]), lifdSource.UniqueId); AssertAreEqual(expected[1], lifdSource.OriginalFileName); AssertAreEqual(expected[2], lifdSource.FileType.TrimEnd(' ')); AssertAreEqual(expected[3], lifdSource.FileCreator.TrimEnd(' ')); AssertAreEqual(expected[4], lifdSource.Data.Length); AssertAreEqual(expected[5], lifdSource.AssetModTime); AssertAreEqual(expected[6], lifdSource.ChildDocId); AssertAreEqual(expected[7], lifdSource.Version); AssertAreEqual((bool)expected[8], lifdSource.HasFileOpenDescriptor); AssertAreEqual(expected[9], lifdSource.Length); if (lifdSource.HasFileOpenDescriptor) { AssertAreEqual(-1, lifdSource.CompId); AssertAreEqual(-1, lifdSource.OriginalCompId); lifdSource.CompId = int.MaxValue; } SaveSmartObjectData( Output + fileName, lifdSource.OriginalFileName, lifdSource.Data); lifdSource.Data = LoadNewData("new_" + lifdSource.OriginalFileName); AssertAreEqual(expected[10], lifdSource.Length); lifdSource.ChildDocId = Guid.NewGuid().ToString(); lifdSource.AssetModTime = double.MaxValue; lifdSource.FileType = "test"; lifdSource.FileCreator = "me"; } AssertAreEqual(newLength, lnk2Resource.Length); break; } } AssertAreEqual(true, lnk2Resource != null); if (image.BitsPerChannel < 32) // 32 bit per channel saving is not supported yet { image.Save(basePath + Output + fileName, new PsdOptions(image)); } } } // This example demonstrates how to get and set properties of the PSD Lnk2 Resource and its liFD data sources for 8 bit per channel. ExampleOfLnk2ResourceSupport("rgb8_2x2_embedded_png.psd", 1, 0x12C, 0x0000079c, Lnk2ResourceSupportCases); // This example demonstrates how to get and set properties of the PSD Lnk3 Resource and its liFD data sources for 32 bit per channel. ExampleOfLnk2ResourceSupport("Layered PSD file smart objects.psd", 2, 0x19504, 0x0001d3e0, LayeredLnk3ResourceSupportCases); // This example demonstrates how to get and set properties of the PSD Lnk2 Resource and its liFD data sources for 16 bit per channel. ExampleOfLnk2ResourceSupport("LayeredSmartObjects16bit.psd", 2, 0x19504, 0x0001d3e0, LayeredLnk2ResourceSupportCases);

PSDNET-673-支持在運行時添加筆畫效果

string srcFile = "StrokeEffectsSource.psd";
string outputFilePng = "output.png";
 
using (var psdImage = (PsdImage)Image.Load(srcFile, new PsdLoadOptions() { LoadEffectsResource = true }))
{
    StrokeEffect strokeEffect;
    IColorFillSettings colorFillSettings;
    IGradientFillSettings gradientFillSettings;
    IPatternFillSettings patternFillSettings;
 
    // 1. Adds Color fill, at position Inside
    strokeEffect = psdImage.Layers[1].BlendingOptions.AddStroke(FillType.Color);
    strokeEffect.Size = 7;
    strokeEffect.Position = StrokePosition.Inside;
    colorFillSettings = strokeEffect.FillSettings as IColorFillSettings;
    colorFillSettings.Color = Color.Green;
 
    // 2. Adds Color fill, at position Outside
    strokeEffect = psdImage.Layers[2].BlendingOptions.AddStroke(FillType.Color);
    strokeEffect.Size = 7;
    strokeEffect.Position = StrokePosition.Outside;
    colorFillSettings = strokeEffect.FillSettings as IColorFillSettings;
    colorFillSettings.Color = Color.Green;
 
    // 3. Adds Color fill, at position Center
    strokeEffect = psdImage.Layers[3].BlendingOptions.AddStroke(FillType.Color);
    strokeEffect.Size = 7;
    strokeEffect.Position = StrokePosition.Center;
    colorFillSettings = strokeEffect.FillSettings as IColorFillSettings;
    colorFillSettings.Color = Color.Green;
 
    // 4. Adds Gradient fill, at position Inside
    strokeEffect = psdImage.Layers[4].BlendingOptions.AddStroke(FillType.Gradient);
    strokeEffect.Size = 5;
    strokeEffect.Position = StrokePosition.Inside;
    gradientFillSettings = strokeEffect.FillSettings as IGradientFillSettings;
    gradientFillSettings.AlignWithLayer = false;
    gradientFillSettings.Angle = 90;
 
    // 5. Adds Gradient fill, at position Outside
    strokeEffect = psdImage.Layers[5].BlendingOptions.AddStroke(FillType.Gradient);
    strokeEffect.Size = 5;
    strokeEffect.Position = StrokePosition.Outside;
    gradientFillSettings = strokeEffect.FillSettings as IGradientFillSettings;
    gradientFillSettings.AlignWithLayer = true;
    gradientFillSettings.Angle = 90;
 
    // 6. Adds Gradient fill, at position Center
    strokeEffect = psdImage.Layers[6].BlendingOptions.AddStroke(FillType.Gradient);
    strokeEffect.Size = 5;
    strokeEffect.Position = StrokePosition.Center;
    gradientFillSettings = strokeEffect.FillSettings as IGradientFillSettings;
    gradientFillSettings.AlignWithLayer = true;
    gradientFillSettings.Angle = 0;
 
    // 7. Adds Pattern fill, at position Inside
    strokeEffect = psdImage.Layers[7].BlendingOptions.AddStroke(FillType.Pattern);
    strokeEffect.Size = 5;
    strokeEffect.Position = StrokePosition.Inside;
    patternFillSettings = strokeEffect.FillSettings as IPatternFillSettings;
    patternFillSettings.Scale = 200;
 
    // 8. Adds Pattern fill, at position Outside
    strokeEffect = psdImage.Layers[8].BlendingOptions.AddStroke(FillType.Pattern);
    strokeEffect.Size = 10;
    strokeEffect.Position = StrokePosition.Outside;
    patternFillSettings = strokeEffect.FillSettings as IPatternFillSettings;
    patternFillSettings.Scale = 100;
 
    // 9. Adds Pattern fill, at position Center
    strokeEffect = psdImage.Layers[9].BlendingOptions.AddStroke(FillType.Pattern);
    strokeEffect.Size = 10;
    strokeEffect.Position = StrokePosition.Center;
    patternFillSettings = strokeEffect.FillSettings as IPatternFillSettings;
    patternFillSettings.Scale = 75;
 
    psdImage.Save(outputFilePng, new PngOptions());
}

PSDNET-629-嘗試打開不支持的格式作為圖像時，出現“更改異常消息”

var filesList = new string[]
 {
     "BmpExample.bmp",
     "GifExample.gif",
     "Jpeg2000Example.jpf",
     "JpegExample.jpg",
     "PngExample.png",
     "TiffExample.tif",
  };
 
 var expectedExceptionMessage = @"Cannot open an image. The image file format may be not supported at the moment or cannot be opened in such way. If you try to add Layer, please Open File as a Stream and use AddLayer method instead. Check the documentation //docs.aspose.com/display/psdnet/Add+Layer+to+PSD";
 
 foreach (var filePath in filesList)
 {
     try
     {
         using (var image = Image.Load(filePath))
         {
         }
     }
     catch (Exception e)
     {
         if (e.InnerException == null ||
             !string.Equals(e.InnerException.Message, expectedExceptionMessage, StringComparison.InvariantCultureIgnoreCase))
         {
             throw e;
         }
     }
 }