TweakPNG is a low-level utility for examining and modifying PNG image files. It runs on Windows 95 or higher (98, ME, 2000, XP, etc.). In order to use it, you will need to be at least somewhat familiar with the internal format of PNG files.
TweakPNG is an interactive PNG file editor utility that allows you to view and modify some of the meta-information stored in PNG image files.
It is not a real image editor or viewer. (It does include a simple image viewer, but it only passively displays the current state of the file.)
Here are a few of the possible uses of TweakPNG:
- To remove unneeded or unwanted chunks, usually to reduce file size.
- To annotate an image file by adding or modifying text chunks.
- To change background colors and transparency settings.
- To help make test images for testing applications that read PNG files.
Top 4 Download periodically updates information of TweakPNG 1.2.1 script from the developer, but some information may be slightly out-of-date.
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