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OptimizeFree PGM to MNG Converter
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PGM
Portable Gray Map
Portable Gray Map (PGM) is a file format for grayscale images. It is a lowest common denominator grayscale file format that most image processing programs can read and write.
Main usage
PGM is used for storing images such as X-ray images, medical images, and other scientific images.
- 8-bit grayscale
- 1-bit black and white
- 24-bit RGB color
Main features
MNG
Multiple-image Network Graphics
Multiple-image Network Graphics (MNG) is an image format that is similar to PNG. It was created as an extension to PNG in order to allow animation. It is a lossless format, meaning that no data is lost when the image is compressed.
Main usage
MNG is mainly used for creating animations, as it supports multiple frames and transparency. It is also used for creating images with transparency, as it supports alpha channels.
- Lossless compression
- Animation
- Transparency
- Interlacing