Because JPEG eliminates data, it can achieve much smaller file sizes than other lossless compression methods.ĬCITT Fax is also a lossless compression option. JPEG is suitable for grayscale or color images. JPEG is a lossy compression algorithm that has been conceived to reduce the file size of natural, photographic-like true-color images as much as possible without affecting the quality of the image as experienced by the human eye and nervous sytem. Run Length Encoding (RLE) is also a lossless compression option that produces the best results for images that contain large areas of solid white or black. Flate works well on images with large areas of single colors or repeating patterns. None - no compression algorithm will be usedįlate is a lossless compression method. Monochrome Image Compression: Different compression formats may be used specially for 2 color image formats, i.e.: the CCITT Fax compression format, which offers a great compression ratio but only for monochrome raster images.Quality: Quality of the JPEG compressed images (available values from 1 to 100, where 100 is the best quality) Using the JPEG compression for example, which applies only for color image formats will greatly reduce file size when using many images in a document at the expense of some quality loss. Color Raster Image Compression: The compression type to use on any embedded color raster image.
Setting stream compression formats effects documents the most which use lots of text or 2D vector-graphical content and few raster images All streams in the document support compression.
Pdf compression tools pdf#
Pdf compression tools drivers#
Black Ice Printer Drivers provide the following compression methods: Even this kind of compression can reduce a text file to 50% of its original size.Ĭompression can be either lossy (some information is permanently lost) or lossless (all information can be restored). This algorithm determines the compression quality.Ī compression algorithm can be as simple as removing all extra space characters, inserting a single repeat character to indicate a string of repeated characters, and substituting smaller bit strings for frequently occurring characters. Compression method uses a formula or algorithm to compress data. Using compression will reduce the size of the output file. Under the compression tab you can select the compression algorithm of the PDF document’s content.
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