Convert PPM to PDB GRAPHICS

The Portable Pixmap (PPM) file extension, an image format within the Netpbm family, stores simple, uncompressed images. Introduced in the late 1980s, PPM supports RGB color and grayscale images, making it suitable for basic image processing and conversion tasks. Its plain text encoding simplifies debugging and data manipulation, although its lack of compression results in larger file sizes compared to modern formats. As such, PPM finds limited use in contemporary applications, mainly in educational and experimental settings where ease of implementation and readability are prioritized.

The PDB (Palm Database ImageViewer) file extension is a format used primarily in Palm OS devices for storing bitmap images. Known also as FireViewer or TinyViewer format, it supports grayscale images with 2, 4, or 16 shades and can be uncompressed or use RLE compression. This format was integral to Palm OS applications like Image Viewer III, facilitating efficient image storage and viewing on early mobile devices.