What is the difference between .ppm and .png?
- Extension
 - .ppm
 - .png
 
- Format
 - Text
 - Binary
 
- Category
 - Raster Image
 - Raster Image
 
- Developer
 - Jef Poskanzer
 - PNG Development Group
 
- Description
 - A PPM file is a 24-bit color image formatted using a text format. It stores each pixel with a number from 0 to 65536, which specifies the color of the pixel. PPM files also store the image height and width, whitespace data, and the maximum color value.
 - A PNG file is an image file stored in the Portable Network Graphic (PNG) format. It contains a bitmap of indexed colors and uses lossless compression, similar to a .GIF file but without copyright limitations. PNG files are commonly used to store graphics for web images.
 
- MIME Type
 - image/x-portable-pixmap
 - image/png
 
- Sample
 - sample.ppm
 - sample.png
 
- Wikipedia
 - .ppm on Wikipedia
 - .png on Wikipedia