Convert PSB to PPM online in seconds — free, with no sign-up. PPM is lossless and ideal for intermediate processing; converted to PNG/JPG for sharing. Your files are encrypted and deleted automatically after 24 hours.
PSB
Photoshop Big Document — Photoshop's large-document format for images larger than 30,000 pixels.
PPM
Portable Pixmap — A simple uncompressed format used in image-processing pipelines.
How to convert PSB to PPM
- 1Upload your PSB file
Click “Choose a file” or drag and drop your PSB file onto the page — no sign-up or email needed.
- 2Convert to PPM
PPM is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your PPM file
Your PPM file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
PSB vs PPM
| PSB | PPM | |
|---|---|---|
| Full name | Photoshop Big Document | Portable Pixmap |
| Type | Raster image | Raster image |
| Compression | Lossless | Lossless |
| Best for | huge Photoshop files; exported to TIFF or PNG for sharing | intermediate processing; converted to PNG/JPG for sharing |
Frequently asked questions
Does converting PSB to PPM lose quality?
No. Both PSB and PPM are lossless, so every detail is preserved exactly — the conversion is visually and mathematically identical to the original.
What's the difference between PSB and PPM?
Photoshop Big Document (PSB) is lossless and best for huge Photoshop files; exported to TIFF or PNG for sharing. Portable Pixmap (PPM) is lossless and best for intermediate processing; converted to PNG/JPG for sharing. Convert PSB to PPM when you need a raster image for intermediate processing.
Is the PSB to PPM converter free?
Yes — converting PSB to PPM is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my PSB files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert PSB to PPM on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert PSB to PPM?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert PSB files to?
Besides PPM, you can convert PSB to AVIF, BMP, GIF, ICO, JPG, PDF and more — see the full list of PSB conversions below.
Other conversions
Last updated July 2026