PreblendImages
Contents
[
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]PdfSaveOptions.PreblendImages property
Gets or sets a value determining whether or not to preblend transparent images with black background color.
public bool PreblendImages { get; set; }
Remarks
Preblending images may improve PDF document visual appearance in Adobe Reader and remove anti-aliasing artifacts.
In order to properly display preblended images, PDF viewer application must support /Matte entry in soft-mask image dictionary. Also preblending images may decrease PDF rendering performance.
The default value is false
.
Examples
Shows how to preblend images with transparent backgrounds while saving a document to PDF.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
builder.InsertImage(ImageDir + "Transparent background logo.png");
// Create a "PdfSaveOptions" object that we can pass to the document's "Save" method
// to modify how that method converts the document to .PDF.
PdfSaveOptions options = new PdfSaveOptions();
// Set the "PreblendImages" property to "true" to preblend transparent images
// with a background, which may reduce artifacts.
// Set the "PreblendImages" property to "false" to render transparent images normally.
options.PreblendImages = preblendImages;
doc.Save(ArtifactsDir + "PdfSaveOptions.PreblendImages.pdf", options);
See Also
- class PdfSaveOptions
- namespace Aspose.Words.Saving
- assembly Aspose.Words