PNGCommentator is an application born out of necessity. I needed to add custom metadata to some PNG image files and was amazed to find that there didn't seem to be a good way to do this. A few image editors have some very basic support for PNG metadata, but not enough for my needs. There are some command line tools with more support, but that is not really the simple, convenient workflow I was looking for.
Thus PNGCommentator was born. PNG metadata can now be added and edited at the click of a mouse.
Version 1.2 adds support for batch processing and customisable presets, allowing for much faster workflows. Text macros extend this even further, aloowing the software to automatically insert data such as the date or filename.

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Requires Mac OS X 10.6 or higher (version 1.3 supports OS X 10.4 - 10.5).
Installation is as simple as dragging the the application from the disk image to your hard drive.

Download PNGCommentator 1.3.2    File size: 930 KB

Download PNGCommentator 1.3.2    File size: 822 KB


Current version: 1.3.2
New in this version:
New in this version 1.3.1:
New in version 1.3:

New in version 1.2.1:
  • Changed string encodings from ASCII to UTF8 to improve international support
  • Added support for compresion of long text comments (this is applied automatically)

New in version 1.2:
  • New metadata preset editor enhances the workflow
  • Batch processor window allows you to alter huge numbers of files rapidly
  • Macros can be used in metadata presets and batch processo
  • Other minor improvements

New in version 1.1.1:
  • Improved copy and paste support
  • Introduced drag and drop support
  • Added filtering of comments by keyword
  • New, prettier icon!
  • Other minor improvements

New in version 1.1:
New in version 1.0:
  • Initial release.
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