 Programs in Ada can use Zip-Ada (pure) or the ZLib-Ada thick binding to zlib.AdvanceCOMP uses the higher compression ratio version of Deflate as implemented by 7-Zip (or optionally Zopfli in recent versions) to enable recompression of gzip, PNG, MNG and ZIP files with the possibility of achieving smaller file sizes than zlib is able to at maximum settings.Inflate is the decoding process that takes a Deflate bit stream for decompression and correctly produces the original full-size data or file.