Can I convert PostScript to PPM / PNM on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert PostScript to PPM / PNM on your phone or computer without installing an app.

Is there a free PostScript to PPM converter with no sign-up?

Yes, this one. Converting PostScript to PPM on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert PostScript to PPM without losing quality?

Yes. PPM is a lossless format, so your converted file is pixel-for-pixel the same as the PostScript. (It can't add back detail the original never had.)

Can I batch convert PostScript to PPM?

Yes. Add up to 30 PostScript files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload PostScript files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

PostScript to PPM / PNM Converter

Convert PostScript images to PPM / PNM online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your PostScript files onto the converter
2
Press Convert to turn them into PPM / PNM
3
Download your PPM / PNM images one by one or as a ZIP

PostScript to PPM / PNM

Why convert PostScript to PPM?

The main difference: PostScript is a vector format, while PPM is a lossless format.

Where PPM works best

PPM is ideal for simple uncompressed images for scientific and developer tools. Converting gives you a file that works in the apps and websites that ask for PPM.

PostScript vs PPM / PNM: what's the difference?

Property	PostScript	PPM / PNM
Compression type	Vector (shapes, not pixels)	Lossless (exact pixels, larger files)
Transparent background	No	No
Animation	No	No
Where it opens	None (needs a PostScript viewer)	None
Used for	Print jobs and printer workflows	Simple uncompressed images for scientific and developer tools

What is a PostScript file?

PostScript (.ps) is Adobe's page description language from 1984 - the language many professional printers speak. A .ps file describes a whole page or document as instructions for drawing text, shapes and images.

PostScript files mostly come from print workflows and "print to file" output. PDF was built on the same ideas and has replaced it for everyday use.

How to open a PostScript file

Ghostscript and GSview open PostScript files on Windows; macOS Preview handled them up to Monterey. Adobe Acrobat Distiller converts them to PDF. Converting to PDF or PNG is the easiest way to view one today.

Extension: .ps
Type: Page description language
Best for: Print jobs and printer workflows
Made by: Adobe

What is a PPM / PNM file?

PPM, PGM, PBM and PNM are the Netpbm formats: deliberately simple, uncompressed image files from the 1980s. They store pixels as plain numbers, which makes them easy for programs to read and write.

You'll mostly meet them in scientific computing, image-processing scripts and developer tools - rarely in everyday use.

How to open a PPM / PNM file

GIMP, IrfanView, XnView and Photoshop open Netpbm files, as do Linux image viewers. Windows Photos and browsers can't, so convert to PNG for a lossless, much smaller copy.

Extensions: .ppm, .pgm, .pbm, .pnm
Compression: None
Best for: Scientific and developer tools
Family: Netpbm