Convert vda to pgm

What is the difference between .vda and .pgm?

Description: The VDA file format, short for Targa Bitmap Image File, is a variant of the TGA file format (Truevision Advanced Raster Graphics Adapter) used for storing digital images. Developed by Truevision Inc., VDA files are raster graphics files that support various color depths, ranging from 1 to 32 bits per pixel, which includes support for alpha channels and compression. This format is designed to be highly flexible and is capable of storing high-quality images used in video editing and animations.; A PGM file is a grayscale image file saved in the portable gray map (PGM) format and encoded with one or two bytes (8 or 16 bits) per pixel. It contains header information and a grid of numbers that represent different shades of gray from black (0) to white (up to 65,536). PGM files are typically stored in ASCII text format, but also have a binary representation.