PNM Image Compressor
Compress your pnm (Portable Any Map) images directly in your browser. Output to JPEG or WebP. No files leave your device.
More Tools for PNM
Related Tools
Explore other tools available for this format.
View PNM Files
Open and inspect PNM images directly in your browser.
PNM Metadata Editor
View and edit EXIF and other metadata for PNM files.
Convert PNM
Convert PNM images to other formats like WEBP, PNG, JPEG and more.
Resize PNM Images
Resize PNM images to exact dimensions in your browser. Lock aspect ratio and download instantly.
Crop PNM Images
Crop PNM images to any region in your browser. Draw a selection, lock aspect ratio, and download instantly.
Rotate PNM Images
Rotate and flip PNM images in your browser. Choose 90°, 180°, 270°, or flip horizontally and vertically.
What is pnm?
About PNM
Portable Any Map (.pnm, .ppm, .pgm, .pbm) is a popular image format known for its simple format for raw image data, useful for image manipulation and conversion. PNM is a simple, uncompressed format that can represent grayscale and color images, often used for image processing and manipulation tasks.
FAQ
Common questions
We've got answers.
You can compress any supported input format including JPEG, PNG, WebP, SVG, BMP, GIF, TIFF, QOI, TGA, EXR, and more. The compressor decodes the input and re-encodes it at your chosen quality setting.
Currently the compressor outputs JPEG or WebP. JPEG gives the smallest file sizes for photos. WebP is the better choice when you need to preserve transparency.
Yes, but you control how much. Lower quality settings produce smaller files with more visible artifacts. Higher settings preserve more detail. The tool lets you preview the result before downloading.
Yes. JPEG does not support transparency. Transparent pixels will be replaced with a white background. Choose WebP as the output to preserve transparency.
It depends on the source format and quality setting. A PNG re-encoded as JPEG at 80% quality can often be 70-90% smaller. Results vary by image content.
Yes. The compressor includes a side-by-side comparison tool so you can visually assess the quality difference before committing to a download.