PdfImageCompression enumeration

Specifies the type of compression applied to images in the PDF file.

public enum PdfImageCompression


Name Value Description
Auto 0 Automatically selects the most appropriate compression for each image.
None 1 Saves raw image bytes resulting in bigger PDF file sizes.
Rle 2 Run Length compression.
Flate 3 Flate compression.
LzwBaselinePredictor 4 Predictor selection is restricted to PNG Paeth predictor to speed-up the process. In practice performs surprisingly good. Better than LzwOptimizedPredictor.
LzwOptimizedPredictor 5 Predictor selection is more complicated and should result in smaller image sizes but taking more time.
Jpeg 6 JPEG compression. Does not support transparency.

See Also