Compress PDF
Make a PDF smaller, losing nothing or making its images lighter, in your browser
Drop a PDF here
Or choose one, it's compressed in your browser and never uploaded
Text and drawings stay sharp at every level. Images aren't made larger than the resolution would need on a whole page, so an image drawn smaller keeps more detail, and an image is changed only when it gets smaller. Fonts are kept whole.
How to compress a PDF
- Drop your PDF on the page or choose it.
- Pick a level: Lossless loses nothing, Balanced makes its images JPEGs at 150 DPI, Strong at 100 DPI.
- Compare the sizes before and after, and a page side by side, then try another level if you like.
- Download the smaller PDF.
Questions
How much smaller will my PDF get?
It depends on what it holds. PDFs of photos or scans shrink the most, as their images are made lighter; a PDF of text only shrinks a little. The sizes before and after are shown before you download anything.
Will the text get blurry?
No. Text and drawings stay sharp at every level, and fonts are kept whole. Only images are changed, and an image is changed only when that makes it smaller.
What does lossless compression do?
It keeps everything you see: data repeated in the file is kept once, leftovers and editors' private data are taken out, and the PDF's structure is stored more compactly.
Is my PDF uploaded?
No. It's compressed by your browser, on your device, and never leaves it, so it's safe for private documents.
Can I compress a PDF to send by email?
Yes. Try Balanced first; if it's still too large for your email's limit, try Strong, which suits reading on a screen.