File Convert

Convert PNM to PGM

Free online PNM-to-PGM converter — upload a PNM file and download a PGM. Fast, private, no signup.

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PNM vs PGM

PNM

Netpbm portable anymap (PBM/PGM/PPM umbrella).

About PNM ↗

PGM

Netpbm portable graymap (grayscale).

About PGM ↗

PNM to PGM: frequently asked questions

How do I convert PNM to PGM?

Drop your PNM file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a PGM to download. No software to install.

Is the PNM to PGM converter free?

Yes. Convert PNM to PGM for free right in your browser, with no account needed to get started.

Is it safe and private?

Your file is transferred over an encrypted connection and anonymous uploads are temporary. You can also view and strip metadata (location, device, author) before you download.

What's the difference between PNM and PGM?

Netpbm portable anymap (PBM/PGM/PPM umbrella). Netpbm portable graymap (grayscale).

Related conversions

Convert PNM to: JPG · PNG · WEBP · GIF · HEIC · AVIF · TIFF · BMP · DDS · EPS

Convert to PGM from: AVIF · BMP · DDS · EPS · EXR · GIF · HDR · HEIC · ICNS · ICO

Browse all supported formats →