How it works
- Add your PDF.
- Pick a compression level.
- Download the smaller file. We show you how much you saved.
Questions
Which level should I choose?
Light keeps everything sharp and selectable. Recommended and Strong convert pages to optimized images, which shrinks scans and photo-heavy PDFs dramatically.
Can I compress many PDFs at once?
Yes, batch compression is part of ZoungPDF Pro.
Is ZoungPDF free?
Yes. Merge, split, compress, organize, rotate and convert are free. ZoungPDF Pro unlocks watermarks, page numbers, password protection, signatures, batch processing and files up to 1 GB.
Are my files safe?
Your files are processed entirely inside your browser. They are never uploaded to our servers, so nobody else can see them.