Convert JPG to PGM

Tested on Windows 11, 24 October 2026

Convert JPG images to PGM on your Windows PC. Filoshi converts with ImageMagick and lets you resize, crop or remove location and camera data first. Convert one file or hundreds at once; nothing is uploaded.

Get Filoshi · $29One-time purchase, for Windows 10 and 11.

JPG to PGM with the Filoshi app

This conversion uses ImageMagick, which is built into the app. It runs on your Windows PC, offline, and the file never leaves it.

  1. Drop your JPG files on the Filoshi window, or paste them with Ctrl+V.
  2. Pick PGM for one file or for all of them.
  3. Press Convert all. Each PGM file appears next to its original, which is never changed.
Get Filoshi · $29

For Windows 10 and 11 · no subscription

Source format

What is JPG?

JPEG Image (.jpg). JPEG is the most common format for photographs. Its lossy compression keeps files small with good visual quality, but every re-save loses a little more detail, and it cannot store transparency.

Common use: Photos, web images, social media, email attachments

Output format

What is PGM?

Portable Graymap (.pgm). PGM is the greyscale member of the Netpbm family: simple and uncompressed, easy for programs to read and write. It shows up in computer vision, scientific imaging and command-line image tools.

Common use: Computer vision and scientific images

Questions about JPG to PGM

Is converting JPG to PGM free?
JPG to PGM needs the Filoshi desktop app for Windows, a one-time purchase of $29. There is no subscription and no per-file fee.
Does converting JPG to PGM lose quality?
No further loss: PGM keeps exactly what is decoded from the JPG file. It cannot bring back detail that JPG's lossy compression already removed, and the PGM file is usually larger.
Is my JPG file uploaded anywhere?
No. Filoshi converts on your PC with its built-in engines (FFmpeg, ImageMagick, Pandoc, PDFium, pdfcpu and 7-Zip). Your JPG file never leaves your computer.
Has JPG to PGM been tested?
Yes. JPG to PGM is one of the 1,841 conversions that passed Filoshi's automated test matrix on Windows 11.
Can I convert many JPG files at once?
Yes, in the desktop app. Drop as many JPG files as you like on the window, pick PGM once for all of them, and each file shows its own progress. The new files appear next to the originals, which are never changed.

Related conversions

Other JPG conversions

JPG to JPEGJPG to PNGJPG to WEBPJPG to AVIFJPG to GIFJPG to BMPJPG to TIFFJPG to TIF

Convert to PGM

PNG to PGMJPEG to PGMWEBP to PGMAVIF to PGMJXL to PGMGIF to PGMBMP to PGMTIFF to PGM