zlib-flate

Compress data

$ zlib-flate -compress < [input] > [output.zz]

$ zlib-flate -uncompress < [input.zz] > [output]

$ zlib-flate -compress=[9] < [input] > [output.zz]

zlib-flate [-compress[=level]] [-uncompress]

zlib-flate performs raw zlib deflate compression and decompression. It reads from standard input and writes to standard output, making it well suited for use in shell pipelines.
The tool produces raw deflate format without gzip or zlib headers, which distinguishes it from utilities like gzip or zcat. Compression levels from 1 (fastest) to 9 (best compression) can be specified with the -compress= option.
zlib-flate is included as a utility in the QPDF package. It is useful for working with raw deflate streams such as those found in PDF file internals or other formats that use zlib compression without wrapper headers.

-compress

Compress data.

Decompress data.

Compression level (1-9).

Raw format. No gzip headers. Part of qpdf package.

zlib-flate is included with QPDF, providing raw zlib deflate compression and decompression.

gzip(1), zcat(1), pigz(1)