GEEDITOR / JPG → PGM
About this conversion · JPG → PGM
Export JPG pixels as PGM for software or a processing pipeline that requests this format. Check the output characteristics below before converting a whole batch; a format with a larger bit depth or simpler storage does not add detail to the source.
Output: PGM / P5 · 8 bit/pixel · maxval=255
PBM is black and white; PGM is grayscale. Converting color artwork to these targets discards color information. Inspect small text and contrast rather than expecting photographic color fidelity.
Worked example — Calculated example; not a measured file-size result
Input: 2400 × 1600 px
Maximum image width: 1600 px
Output: 1600 × 1067 px
How to convert
- Click “Choose files” and select the original JPG file. Start with one file when comparing settings.
- Check that the output selector shows PGM. The instructions here describe this choice; changing the output can change which settings apply.
- Open “Conversion settings” below the file area before starting conversion. Set only the options relevant to the output described below.
- Leave “Maximum image width” empty to keep the current dimensions. Enter a smaller width, such as 1600, only when you want to reduce a wider image; the height follows its proportions.
- Click “Convert files”, then save the result from its file row. “Download all” puts completed files into a ZIP; it does not combine their contents.
- Open the downloaded PGM image at 100% zoom. Compare dimensions, orientation, fine text, transparent edges and colors with the JPG original before uploading it elsewhere.