Aspose.Imaging for .NET 17.7 - Release Notes

Key	Summary	Category
MAGINGNET-2425	Need to support gray scale with alpha for PSD	Feature
IMAGINGNET-2347	Investigate and fix differences in Fonts in Adobe Photoshop and GDI+(Aspose.Imaging) rendering	Feature
IMAGINGNET-2429	Aspose.Imaging 17.6.0: Evaluation watermark appears when loading SVG document with VentureLicenser	Enhancement
IMAGINGNET-2381	Examine partial processing mechanism implemented in JPEG DCT loader	Enhancement
IMAGINGNET-2288	When PSD is saved as PNG, the output looks different	Enhancement
IMAGINGNET-2256	Image is recolored when using Graphics.DrawImage	Enhancement
IMAGINGNET-2137	Wrong text color when using Graphics.DrawString to add watermark	Enhancement

Public API changes:

Added APIs:

Aspose.Imaging.Extensions.FontExtensions.ToGdiFont(Aspose.Imaging.Font,System.Drawing.GraphicsUnit) Method Aspose.Imaging.FileFormats.Png.PngImage.OnPaletteChanged(Aspose.Imaging.IColorPalette,Aspose.Imaging.IColorPalette) Property Aspose.Imaging.FileFormats.Psd.Layers.Layer.HasAlpha Property Aspose.Imaging.FileFormats.Psd.PsdImage.HasAlpha Property Aspose.Imaging.Image.AutoAdjustPalette

Removed APIs:

Nothing

Usage examples:

IMAGINGNET-2425 Need to support grayscale with alpha for PSD.

 string filePath = "ill_bado_gs723.psd";

using (Image image = Image.Load(filePath))

{

// Cast image object to PSD image

PsdImage psdImage = (PsdImage)image;

// Create an instance of PngOptions class

PngOptions pngOptions = new PngOptions();

pngOptions.ColorType = PngColorType.TruecolorWithAlpha;

image.Save("result.png", pngOptions);

}

IMAGINGNET-2347 Investigate and fix differences in Fonts in Adobe Photoshop and GDI+(Aspose.Imaging) rendering

 using (PsdImage input = Image.Load("input_2347.psd", new PsdLoadOptions() { LoadEffectsResource = true }) as PsdImage)

{

input.Save("output_2347.png", new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

}

IMAGINGNET-2381 Examine partial processing mechanism implemented in JPEG DCT loader.

 using (JpegImage jpegImage = (JpegImage)Image.Load("huge.jpg"))

{

jpegImage.Save("huge.png", new PngOptions());

}

IMAGINGNET-2288 When PSD is saved as PNG, the output looks different [.Net] This example demonstrates how to load psd image in photoshop compatibility mode (this mode can be used only if not planned to obtain any changes due work to layers and this mode guarantees max compatibility with Adobe Photoshop). For proposed issue must be used this code.

 string inputFilePath = "MSFT_DevEva_Web_Twitter-800x320_2-DVG.PSD";

using (PsdImage image = (PsdImage)Image.Load(inputFilePath, new PsdLoadOptions() { ReadOnlyMode = true }))

{

image.Save(

"result.png",

new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

}

This example demonstrates how to load psd image with Layer Effects. Option for loading layer effects resources called LoadEffectsResource. You should note, that layer effects resources take lot of memory for processing and they can be processed using Disk cache by setting option UseDiskForLoadEffectsResource = true.

 string inputFilePath = "MSFT_DevEva_Web_Twitter-800x320_2-DVG.PSD";

using (PsdImage image = (PsdImage)Image.Load(inputFilePath, new PsdLoadOptions() { LoadEffectsResource = true, UseDiskForLoadEffectsResource = true }))

{

image.Save(

"result.png",

new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

}

 string sourceFileName = "input.psd";

using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(sourceFileName, new PsdLoadOptions() { LoadEffectsResource = true, UseDiskForLoadEffectsResource = true }))

{

PsdImage psdImage = (Aspose.Imaging.FileFormats.Psd.PsdImage)image;

PngOptions pngOptions = new PngOptions();

pngOptions.ColorType = Aspose.Imaging.FileFormats.Png.PngColorType.TruecolorWithAlpha;

for (int i = 0; i < psdImage.Layers.Length; i++)

{

if (psdImage.Layers[i] is TextLayer)

{

TextLayer textLayer1 = (TextLayer)psdImage.Layers[i];

textLayer1.UpdateText("Test");

}

}

psdImage.Save("result.psd", new PsdOptions());

image.Save("result.png", new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

}

IMAGINGNET-2256 Image is recolored when using Graphics.DrawImage

 string inputFile = "Input.gif";

string watermarkFile = "watermark.png";

string outputFile = "Aspose_output_useAdjust.gif";

using (GifImage image = (GifImage)Image.Load(inputFile))

using (Image watermark = Image.Load(watermarkFile))

{

image.AutoAdjustPalette = true;

foreach (IGifBlock block in image.Blocks)

{

GifFrameBlock gifFrameBlock = block as GifFrameBlock;

if (gifFrameBlock != null)

{

Graphics g = new Graphics(gifFrameBlock);

g.DrawImage(watermark, new Rectangle(0, 0, 250, 150));

}

}

image.Save(outputFile);

}

IMAGINGNET-2137 Wrong text color when using Graphics.DrawString to add watermark

 string inputFile = "Input.png";

string outputFile = "Aspose_output_useAdjust.png";

string testString = "Test watermark";

float fontSize = 30;

using (Image image = Image.Load(inputFile))

{

image.AutoAdjustPalette = true;

Graphics g = new Aspose.Imaging.Graphics(image);

Font font = new Aspose.Imaging.Font("Arial", fontSize);

using (Brush brush = new Aspose.Imaging.Brushes.SolidBrush(Aspose.Imaging.Color.Red))

{

g.DrawString(testString, font, brush, 70, 70);

}

image.Save(outputFile);

}