Compress PDF files
Choose a PDF, then make it as small as it gets with no change to how it looks, or type the largest size it may be. It is compressed on your device and never uploaded.
The file will be at or under this size, or the tool shows the smallest it can reach.
Runs qpdf in your browser. Open-source licenses
How to compress a PDF
Choose your file, or drop it on the box above.
Pick Smaller, same quality, or At or under a size and type the size, such as 1 MB or 200 KB.
Select Compress PDF and download the result.
Compress a PDF to an exact size
Type the largest size a form or an email allows. The file you get is at or under it, or the page says plainly that this file cannot get that small and shows the smallest size it reached, which you can still download.
Sizes are counted the strict way: 1 KB is 1,000 bytes and 1 MB is 1,000,000 bytes, so a file under 200 KB here is under 200 KB on any upload form.
To reach a size, photos and scans in the file are made lighter, a little at a time, until the file fits. Text, drawings and form fields are not changed, so they stay sharp.
Never larger than your file
First the file is rewritten without losing anything: its parts are packed more tightly and compressed again. Nothing you see on a page changes.
If a file is already as small as it gets, you get your own file back, never a larger one.
Your file never leaves your device
Compression runs in your browser with qpdf, an open-source PDF library built to run on your device, and your browser's own image encoder. No file, page or file name is sent to us or to anyone else. The tool itself loads only when you start, so the page stays fast.
How large can the file be?
It depends on your device's memory. If the file is too large for your device, the tool says so before it starts, rather than letting the browser close the tab.
A file protected with a password opens once you type its own password on this page, and the compressed file keeps the same protection. We never get around a file's protection.