< file format , compression > A compression standard derived from LZ77 ; it is reportedly used in zip , gzip , PKZIP , and png , among others.
Unlike LZW , deflate compression does not use patented compression algorithms .
Used as a verb to mean to compress (not decompress!) a file which has been compressed using deflate compression. The opposite, inflate , means to decompress data which has been deflated.
Deflate is described in RFC 1951 .
(1997-06-21)