Compress Large PDFs for Email and Upload Forms
Government portals and email often limit file size. Shrink scanned or image-heavy PDFs by re-rendering their pages at a lower resolution, all in your browser.
Open the free PDF Compressor →What is the PDF Compressor?
Shrink scanned or image-heavy PDFs by re-rendering pages at a lower resolution, in your browser. It's completely free, needs no sign-up and works on any phone or computer.
Why it's helpful
- Re-renders pages at a lower resolution
- Private: no upload
- Great for scanned documents
Who it's for
Anyone uploading documents to portals or sending them by email.
How to use it
- Choose a PDF and a quality level, then Compress.
- Compare the sizes and download.
💻 Open source: this tool is free and open source (MIT License). View the code on GitHub, download it and run it offline.
The bigger picture: Documents
Visas, job applications, tenancy contracts and bank forms all run on PDFs. These tools merge, compress, sign and edit PDFs in your browser, so passports, IDs and statements never leave your device.
What's changing: As people grow more careful about where personal documents go, privacy-first, in-browser PDF tools are replacing upload-based websites.
Frequently asked questions
Why didn't my PDF get smaller?
Text-only PDFs are already small. This method works best on scans and photos.
