Compress a PDF
Reduce the size of a PDF so you can email it, without uploading the file to a server.
| Before | After | Saved |
|---|---|---|
Your files stay in your browser: they are never uploaded or stored.
About this tool
This free tool lets you compress a PDF online, with no sign-up and without uploading the file to a server. It helps reduce the size of a PDF that is too large for an email or an online form, such as a scanned file, a brochure or a menu full of photos. All the compression is done in your browser.
There are two modes. Lossless optimization restructures the file without touching its content, and savings are often modest. Strong compression turns each page into a compressed JPG image, with three levels: screen (100 dpi), standard (150 dpi) or print (200 dpi). The tool shows the size before, after and the saving, and offers a download only when the file is smaller.
- Lossless optimization of the file
- Strong compression with three levels
- Before and after size comparison
- Download offered only if the file shrinks
- Local compression, PDF never uploaded
How to use it
- Drag a PDF into the drop area or click to choose one.
- Choose the compression type and, for strong compression, the level.
- Click "Compress" and compare the sizes before and after.
- Click "Download PDF".
Frequently asked questions
Is my PDF uploaded to a server to be compressed?
No. Your browser does the compression; the file is never uploaded or stored.
Is PDF compression free here?
Yes. The tool is free, needs no account and adds no watermark to the compressed file.
What do I lose with strong compression?
Each page becomes an image, so text can no longer be selected or searched and links are lost. Keep the original if you need them, or use lossless optimization.
Why is there no file to download?
If the result is not smaller than the original, the tool does not offer it. Try strong compression or a lower level such as Screen (100 dpi).