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TiffCompression Enumeration

Specifies what type of compression to apply when saving page images into a TIFF file.

Namespace:  Aspose.Words.Saving
Assembly:  Aspose.Words (in Aspose.Words.dll) Version: 21.5.0

ExpandedSyntax

public enum TiffCompression

ExpandedMembers

  Member nameValueDescription
None0 Specifies no compression.
Rle1 Specifies the RLE compression scheme.
Lzw2 Specifies the LZW compression scheme. In Java emulated by Deflate (Zip) compression.
Ccitt33 Specifies the CCITT3 compression scheme.
Ccitt44 Specifies the CCITT4 compression scheme.

ExpandedExamples

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));
                    break;
                case TiffCompression.Rle:
#if NETCOREAPP2_1
                    Assert.That(6000, Is.LessThan(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
#else
                    Assert.That(600000, Is.LessThan(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
#endif
                    break;
                case TiffCompression.Lzw:
                    Assert.That(200000, Is.LessThan(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
                    break;
                case TiffCompression.Ccitt3:
                    Assert.That(90000, Is.AtLeast(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
                    break;
                case TiffCompression.Ccitt4:
                    Assert.That(20000, Is.AtLeast(new FileInfo(ArtifactsDir + "ImageSaveOptions.TiffImageCompression.tiff").Length));
                    break;
            }

ExpandedSee Also