j2k free download for Mac

j2k for Mac2.7

07 November 2011

Read and write JPEG 2000 files.

What is j2k for Mac

j2k is a free Photoshop and After Effects plug-in set for reading and writing the JPEG 2000 file format, the successor to JPEG.

Also known as JP2, JPEG 2000 uses wavelet compression as opposed to the DCT compression used in standard JPEG. The end result is better image quality in a smaller file. JP2 also includes mandatory metadata such as information about an image's color space.

The After Effects version has the ability to Auto Proxy, meaning that when working at half or quarter resolution, j2k will only need to read in a fraction of the file, resulting in dramatic speedups.

It also features:

  • Alpha transparency
  • Lossless compression mode
  • 16-bit color
  • Digital Cinema Support

What's new in j2k

Version 2.7:
  • Release notes were unavailable when this listing was updated.
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Feb 27 2004
Feb 27 2004
Version: 1.1
Excellent, the plug in worked perfectly and adding a JP2 file in the install package to test shows a great attention to detail. Good work
App requirements: 
  • Intel 64
  • Intel 32
  • Mac OS X 10.5.8 or later
  • Adobe Photoshop CS3 or later, or Adobe After Effects CS3 or later (or other photoshop plug-in compatible app)

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