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Latest Binary Releases of packJPG:  V2.4

packJPG v2.4 is (finally) released and available for download!

List of improvements over v2.3c:

 - improved compression: typical file size reduction is now 23%...24%
 - around 10% faster compression & decompression
 - major improvements to JPG compatibility
 - UPX compression removed due to false alerts in virus scanners
 - new switch: [-ver] (verify file after processing)
 - new switch: [-np] (no pause after processing)
 - new progress bar output mode
 - arithmetic coding routines rewritten from scratch
 - various smaller improvements to numerous to list here
 - new SFX (self extracting) archive format

Download version for Windows-systems.
Download version for Linux-systems.
Download version for Mac-OS-systems (only v2.3a).

You can find older  files available in the download section.

April 20, 2010

JPEG Open Source Developers Package:

  • Along with version 2.4 we also release the "JPEG Open Source Developers Package".
    The package includes several of the tools used in analysing JPEG data and developing packJPG. Please note: The packJPG source code is not included in the package.
    Download the JPEG Open Source Developers Package from here! 
April 20, 2010
Notes and Papers:
 
April 20, 2010