Compress PDF
Reduce PDF size with lossless structural optimization — entirely in your browser.
This tool runs entirely in your browser. Your files are never uploaded.
In short
Compress PDF lets you shrink the file size of a PDF. Everything runs 100% in your browser via WebAssembly — your file is never uploaded and never leaves your device. FeelPDF is free with no file-size limits, no daily limits, no sign-up, no ads and no trackers — and it is open-source under AGPL-3.0.
How to compress pdf
- 1
Open the Compress PDF tool
Go to the Compress PDF page on FeelPDF — no account or install needed.
- 2
Add your file
Drop your file — it stays on your device, nothing is uploaded.
- 3
Adjust the options
Set any options to shrink the file size of a PDF.
- 4
Download the result
Click the button and your new file is saved directly to your device.
Frequently asked questions
- Are my files uploaded to Compress PDF?
- No. Compress PDF runs entirely in your browser using WebAssembly. Your files are never uploaded — you can verify this in your browser's network tab.
- Is it really free?
- Yes. FeelPDF is free with no file-size caps, no daily limits, no account and no ads. It is open-source under the AGPL-3.0 licence.
- Do I need to install anything or sign up?
- No. It works instantly in any modern browser — no download, no registration, no cookie banner.
- Is FeelPDF GDPR compliant?
- Yes, by design. For in-browser tools we never receive your files at all; the one server-assisted path runs in the EU with zero data retention.