How to Convert PNG to PPM

PPM (Portable Pixmap) is part of the Netpbm family of formats, created in the late 1980s specifically to make image data easy to exchange between different platforms and easy for programmers to read and write without a complex library. PPM stores full color images at 24 bits per pixel (8 bits each for red, green, and blue), either as raw binary data or as plain ASCII text, which makes it a common intermediate format in command-line image-processing pipelines and academic or research software, though it has no support for PNG's alpha channel transparency.

Converting PNG to PPM is typically done when feeding images into a Unix-style processing pipeline, a research tool, or software built around the Netpbm toolset, since these tools are designed to consume PPM directly rather than decode PNG's compressed format.

1. Install Batchify Image Converter and Resizer Pro on your Windows PC.
2. Open the app and select Batch Mode for multiple files, or Individual Mode for a single PNG.
3. Drag your PNG file or folder into the app window, enabling recursive folder scanning if needed.
4. Set the "From" format to PNG and the "To" format to PPM.
5. Click Convert. PPM files are written to the output folder, fully offline.

• 100% offline — your images are never uploaded anywhere
• Bulk conversion of entire folders, including sub-folders, in one click
• Produces standard PPM files compatible with Netpbm-based tools and pipelines
• Multi-core processing for fast handling of large batches
• Option to delete original PNG files automatically after conversion
• No recurring subscription or hidden upload limits