PDF- Compression Algorithms

PDF- Compression Algorithms The size of Portable Document Files could be relatively smaller than its counterpart, PostScript files. This possibly happens with the help of improved data structure but even more than that it is the efficient compression... More

PDF- Compression Algorithms The size of Portable Document Files could be relatively smaller than its counterpart, PostScript files. This possibly happens with the help of improved data structure but even more than that it is the efficient compression algorithms in PDF that support this. Compression algorithms’ list that could be used is of a wide range as given below: • CCITT G3/G4- It is brought into usage for monochrome images or pictures. • JPEG- Again used for images. • JPEG 2000- This one is a more updated alternative to JPEG which as well is used to compress images. • Flate- Text as well as image compression could be done. • LZW- This gets replaced by Flate else for text and image compression it is used. • ZIP- This is used for color and grayscale images. Read further to get a better insight at how it works. Given that compression is switched in Acrobat Distiller then this would first decompress all images in PostScript and then again compress them when creating a file i Less