Convert PPM to PNG.
Turn a Netpbm PPM into a lossless PNG. Every pixel is kept and the file becomes much smaller and easier to open.
Why PNG for Netpbm output
PNG keeps the exactness of PPM while compressing it, and every operating system, browser and document tool reads it. It is the natural format to share output from an image pipeline.
Good for figures and screenshots
Plots, diagrams and synthetic images keep their crisp edges in PNG. JPG would blur them slightly.
Size change
PNG compression typically cuts a PPM down to a fraction of its size, especially for images with flat areas.
How it works
- 01
Upload your PPM
Drop a file or pick one from your device. Private by default.
- 02
Convert with Pillow
Pillow reads the Netpbm pixel data and writes a lossless PNG.
- 03
Download
Grab your PNG.
Lossless, pixel for pixel
Much smaller than the PPM
Private uploads, auto-deleted after 1 hour
No watermark, no signup to try
Open-source Pillow engine
PPM to PNG: lossless
PNG stores every pixel exactly (lossless) and keeps transparency, so there's no added quality loss. The trade-off is a larger file than a lossy format like JPG, great for graphics, screenshots and further editing, less so for photos you want kept small.
Common questions
Is it free?+
Yes. Convert PPM to PNG free. No signup and no watermark. Free covers 10 server conversions a day, up to 100 MB a file. Pro removes the daily limit and raises the file limit to 2 GB.
Is my file private?+
Your file is uploaded to a private bucket, converted on our own engine, and auto-deleted after 1 hour. It is never sent to a third-party converter.
Is any data lost?+
No. PNG is lossless, so the pixels match the PPM exactly. This makes it a safe format for test images, datasets and figures.
Does it handle 16-bit PPM?+
The converter writes an 8-bit RGB PNG, which suits viewing and sharing. Keep the original if you need 16 bits per channel for analysis.
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