PDF Shrink - Version 1.0 Are your pdf files to big? With PDF Shrink you have to ultimate tool to compress existing pdf files. The program compresses all pictures in the pdf file with the JPEG2000 (color pictures) or the JBIG2 (b/w pictures) compression. You can choose the resulting size for the JPEG2000 pictures. If your files does not contain big pictures but many line objects (CAD file) or many embedded fonts our program can help you too.