ImageSaveOptionsJpegQuality Property |
Gets or sets a value determining the quality of the generated JPEG images.
Syntax
Remarks
Has effect only when saving to JPEG.
Use this property to get or set the quality of generated images when saving in JPEG format. The value may vary from 0 to 100 where 0 means worst quality but maximum compression and 100 means best quality but minimum compression.
The default value is 95.
Examples
Shows how to configure compression while saving a document as a JPEG.
Document doc = new Document(); DocumentBuilder builder = new DocumentBuilder(doc); builder.InsertImage(ImageDir + "Logo.jpg"); // Create an "ImageSaveOptions" object which we can pass to the document's "Save" method // to modify the way in which that method renders the document into an image. ImageSaveOptions imageOptions = new ImageSaveOptions(SaveFormat.Jpeg); // Set the "JpegQuality" property to "10" to use stronger compression when rendering the document. // This will reduce the file size of the document, but the image will display more prominent compression artifacts. imageOptions.JpegQuality = 10; doc.Save(ArtifactsDir + "ImageSaveOptions.JpegQuality.HighCompression.jpg", imageOptions); Assert.That(20000, Is.AtLeast(new FileInfo(ArtifactsDir + "ImageSaveOptions.JpegQuality.HighCompression.jpg").Length)); // Set the "JpegQuality" property to "100" to use weaker compression when rending the document. // This will improve the quality of the image at the cost of an increased file size. imageOptions.JpegQuality = 100; doc.Save(ArtifactsDir + "ImageSaveOptions.JpegQuality.HighQuality.jpg", imageOptions); Assert.That(60000, Is.LessThan(new FileInfo(ArtifactsDir + "ImageSaveOptions.JpegQuality.HighQuality.jpg").Length));