Can't compress PDF files

How to obtain maximum compression with ? ion compress pdf Document , Subject English, from St ion ó 2 A cat ch ó B coa ch ó C cra sh ó 3 A j ourney ó B bri dge ó ion compress A compression process is to reduce or compress the size of data while maintaining the quality of information contained therein

ion pdf compressor PDF; RTF; SXW; TXT; WPS; XLS; XLSX; XPS; AZW3; EPUB; FB2; LRF; MOBI; RB; SNB; TCR In order to compress many bitmaps are saved in jpg, that makes it easier to