PPM (Portable Pixmap), part of the Netpbm family created in the late 1980s, stores full color images at 24 bits per pixel in a simple structure that's easy for command-line tools and research software to read directly. AVIF's modern AV1-based compression isn't something most Netpbm-based pipelines or academic image-processing tools are built to decode, so converting an AVIF file to PPM first makes it usable in those environments.
This conversion is typically needed when feeding images into a Unix-style processing pipeline, computer vision research tool, or any software built around the Netpbm toolset specifically, rather than for everyday web or photo use.
- Install Turbo Batch Image Converter Pro on your Windows PC.
- Open the app and select Batch Mode for multiple files, or Individual Mode for a single AVIF file.
- Drag your AVIF file or folder into the app window, enabling recursive folder scanning if needed.
- Set the "From" format to AVIF and the "To" format to PPM.
- 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 AVIF files automatically after conversion
- No recurring subscription or hidden upload limits
Why would research software need PPM instead of AVIF?
Most Netpbm-based pipelines and academic research tools are built to read PPM's simple structure directly rather than decode AVIF's AV1-based compression, making conversion necessary for compatibility.
Will my PPM file be larger than the original AVIF?
Yes, typically significantly so, since PPM doesn't apply the kind of efficient compression AVIF uses, resulting in considerably larger file sizes for the same image.
Can I convert a whole folder of AVIF files to PPM at once?
Yes, Batch Mode handles entire folders, including nested sub-folders, in a single conversion run.
Ready to convert your images offline, in bulk, with full privacy?