Compress PDF
Make PDFs smaller by shrinking and recompressing their photos, with text left sharp. Several at once, in your browser, with nothing uploaded.
Pictures kept to 150 DPI at their page's size, saved as JPG at quality 70.
Runs in your browser. Nothing you enter is uploaded.
How to use
This tool makes PDFs smaller by shrinking and recompressing the photos inside them, in your browser, without uploading them.
- Add PDFs: drop them on the box or choose them, one or many. If one asks for a password, type it in its row; it's only used to open the file here.
- Choose how much to compress:
- Smallest: pictures at 96 DPI and JPG quality 55, for email and uploads with a size limit.
- Balanced: 150 DPI at quality 70, sharp on screens.
- Best quality: 220 DPI at quality 82, for printing.
- Custom: choose the resolution and quality yourself.
- Each file shows its size before and after, and what happened to its pictures. Changing the settings does them again.
- Download them one by one, or all together with Download all (.zip). A smaller file is named like report-compressed.pdf.
The resolution is how many pixels a picture keeps for each inch of its page, so a phone photo on an A4 page shrinks to what the page can show. Text, fonts and drawings are left as they are, so they stay sharp; a PDF of mostly text barely shrinks. Pictures that look like screenshots or diagrams keep their lossless quality, and pictures in print colours (CMYK) are left untouched. Photos with see-through parts, as PowerPoint and Canva save them, shrink too, their edges kept. A picture or font stored several times is stored once. If a file doesn't come out at least 1% smaller, you get the original back. Remove hidden details also takes out the author, the apps used and other metadata, keeping the title.
Frequently asked questions
Are my PDFs uploaded?
No. The PDFs are opened and compressed in your browser, and they never leave your device. That matters for contracts, IDs and statements.
Why didn't my PDF get much smaller?
The size of most PDFs is in their pictures. A PDF that is mostly text, or whose pictures are already compressed, has little to lose, and the tool gives you the original back rather than a copy that is barely smaller.
Will the text still be sharp and searchable?
Yes. Only pictures are recompressed. Text stays text, so it stays sharp at any zoom and you can still search and copy it.
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