Compress PDF re-saves your document in the browser using object streams, which trims structural overhead. Savings are usually modest, and image-heavy PDFs shrink only a little. Your file is not uploaded to our servers.
Compress PDF
Re-save the PDF more compactly. Image-heavy files shrink only a little
Related tools
Keep the workflow moving
FAQ
Common questions
Do my files leave the browser?
Your files are processed in your browser and are not uploaded to our servers. Results are generated on your device and saved in your browser's storage until you clear the workspace. You do need an internet connection to load the site. There's no account or sign-in.
Which browsers work best?
Chrome, Edge, Safari, and Firefox all work for the core tools. Larger jobs perform best in Chromium browsers with OPFS and worker support.