Compress PDF to 500 KB
Shrink a PDF to 500 KB or less, a comfortable size for multi-page scans on most submission portals. It's a best-effort ceiling: SnapOtter shrinks the images inside the PDF, lowering resolution only as far as the target needs. A PDF that is mostly text or vector drawings has little to squeeze, and if it can't get under 500 KB the result says so and gives you the smallest version it could make.
Features
- Target-size compression locked to 500 KB
- Reports whether the target was reached, and the size it got to
- Recompresses embedded images; text and vector graphics stay sharp
- Never returns a file larger than the one you uploaded
- Self-hosted: documents are processed on your own server
What you can do
- Compress a scanned multi-page contract for an e-signature platform
- Fit a portfolio or research paper under a 500 KB submission limit
- Reduce scanned tax documents before uploading to an accountant's portal
- Shrink image-heavy handouts for learning management systems
Self-hosted. Your files never leave your network.
SnapOtter runs entirely on your own infrastructure. Files processed with Compress PDF to 500 KB are never uploaded to third-party servers. Deploy a single Docker container and process files with full privacy, no watermarks, and no usage limits. Open source under AGPL-3.0.
Frequently asked questions
- Does compressing to 500 KB change the text?
- No. Text and vector drawings are left alone; only the embedded images are recompressed. That's also why a text-only PDF may already be as small as it can get.
- Can I compress a confidential PDF to 500 KB?
- Yes. SnapOtter runs on your own server, so the document is never uploaded to a third-party service.
Ready to try Compress PDF to 500 KB?
Deploy SnapOtter in under a minute. All 254 tools included. Open source and free forever.