Pdlzip

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Introduction

Pdlzip is a lossless data compressor with a user interface similar to the one of lzip, bzip2 or gzip.

Pdlzip uses the lzip file format; the files produced by pdlzip are (hope)fully compatible with lzip-1.4 or newer. Pdlzip is in fact a "public domain" version of the lzip data compressor, intended for those who can't distribute GPL licensed Free Software.

The lzip file format is designed for long-term data archiving. It is clean, provides very safe 4 factor integrity checking, and is backed by the recovery capabilities of lziprecover.

Pdlzip is also able to decompress legacy lzma-alone (.lzma) files.

Pdlzip is written in C.

Pdlzip includes public domain compression code from the LZMA SDK written by Igor Pavlov.

NOTE: As the two reasons for the creation of pdlzip seem to be no longer valid (lzma-alone files are no longer used and I have no proof that any user is prevented from using lzip/clzip on their systems for legal reasons), pdlzip may be discontinued in the future.

Learn more about lzip in the Lzip Home Page.

Documentation

Pdlzip only includes a man page and a README file. For information about the lzip file format see the online manual of lzip below.

The manual is available in the info system of the GNU Operating System. Use info to access the top level info page. Use info lzip to access the lzip section directly.

An online manual for lzip can be found here.

Download

The latest released version of pdlzip can be found here. You may also subscribe to Freecode and receive an email every time a new version is released.

How to Get Help

For general discussion of bugs in pdlzip the mailing list lzip-bug@nongnu.org is the most appropriate forum. Please send messages as plain text. Please do not send messages encoded as HTML nor encoded as base64 MIME nor included as multiple formats. Please include a descriptive subject line. If all of the subject are "bug in pdlzip" it is impossible to differentiate them.

An archive of the bug report mailing list is available at http://lists.nongnu.org/mailman/listinfo/lzip-bug.

How to Help

To contact the author, either to report a bug or to contribute fixes or improvements, send mail to lzip-bug@nongnu.org. Please send messages as plain text. If posting patches they should be in unified diff format against the latest version. They should include a text description.

See also the lzip project page at Savannah.

Licensing

This program is free software: you have unlimited permission to copy, distribute and modify it.

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Copyright © 2014 Antonio Diaz Diaz
Lzip logo Copyright © 2013 Sonia Diaz Pacheco

You are free to copy, modify and distribute all or part of this article without limitation.

Updated: 2014/03/17