Compress PDF
Reduce PDF file size.
or drag and drop here
🔒 Your files never leave your device
How to use
Choose or drop your file
Pick options and start
Download the result
About Compress PDF
Compress PDF makes large PDF files small enough for email attachments, job portals and government forms. Photos and scans are re-encoded intelligently while text and vector graphics stay perfectly sharp, so the document looks the same at a fraction of the size.
- 100% free
- Files stay on your device
- No sign-up
- No watermark
- Works on mobile
Frequently asked questions
How much can a PDF be compressed?
Scans and photo-heavy PDFs often shrink by 50–90%. Text-only PDFs are already small and change less.
Which compression level should I choose?
Recommended keeps text crisp and suits almost every file. Choose Strong when you must hit a strict size limit.
Is Compress PDF free?
Yes. Compress PDF is completely free, needs no account and never adds a watermark to your files.
Are my files safe?
Yes. Your file is processed inside your browser on your own device; it is never uploaded or stored.
Can I use it on my phone?
Yes. Compress PDF works in every modern browser on iPhone and Android, no app needed.