ImageSaveOptions.TiffCompression property

Gets or sets the type of compression to apply when saving generated images to the TIFF format.

public TiffCompression TiffCompression { get; set; }


Has effect only when saving to TIFF.

The default value is Lzw.


Shows how to select the compression scheme to apply to a document that we convert into a TIFF image.

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 options = new ImageSaveOptions(SaveFormat.Tiff);

            // Set the "TiffCompression" property to "TiffCompression.None" to apply no compression while saving,
            // which may result in a very large output file.
            // Set the "TiffCompression" property to "TiffCompression.Rle" to apply RLE compression
            // Set the "TiffCompression" property to "TiffCompression.Lzw" to apply LZW compression.
            // Set the "TiffCompression" property to "TiffCompression.Ccitt3" to apply CCITT3 compression.
            // Set the "TiffCompression" property to "TiffCompression.Ccitt4" to apply CCITT4 compression.
            options.TiffCompression = tiffCompression;

            doc.Save(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff", options);

            switch (tiffCompression)
                case TiffCompression.None:
                    Assert.That(3000000, Is.LessThan(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
                case TiffCompression.Rle:
                    Assert.That(6000, Is.LessThan(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
                    Assert.That(600000, Is.LessThan(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
                case TiffCompression.Lzw:
                    Assert.That(200000, Is.LessThan(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
                case TiffCompression.Ccitt3:
                    Assert.That(90000, Is.AtLeast(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
                case TiffCompression.Ccitt4:
                    Assert.That(20000, Is.AtLeast(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));

See Also