Compress PDF
Make a PDF smaller. It never leaves this tab.
Free and unlimited, on your device. Pro adds batch, searchable PDFs, compress-to-a-size and passwords — $14.99 once. What Pro adds · Buy Pro
Drop a PDF here
or click to choose one from your device
What gets changed
- Images are recompressed and downscaled.
- Text, vectors and form fields are copied byte-for-byte.
- Page count, order and size never change.
- This file carries a digital signature, and rebuilding it will break that signature. Your original is not modified.
Compressing on your device
0%
- Reading page tree waiting
- Recompressing images waiting
- Rebuilding the file waiting
- Verifying every page is present waiting
Your own machine is doing this work, not a server. Nothing has been sent anywhere, so stopping just stops the work.
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from
This file was digitally signed. The signature does not survive rebuilding the document, so the saved copy will show as unsigned. Your original is untouched.
Doing this at work? We are asking firms what they need.
Nothing worth saving
Compressing did not make this file meaningfully smaller.
Questions
Is it safe to compress a PDF online?
Nothing is uploaded, so there is no copy on a server to trust. The counter at the foot of this page shows bytes sent, and it stays at zero.
Does this work offline?
Yes. Once the page has loaded, turn off your wifi and use it — it keeps working. Keep the tab open: reloading needs a connection.
Is there a file size limit?
60 MB. Past that a browser tab stops being able to write the finished file out and sits unresponsive for minutes — it does not crash, it stops being usable — so we refuse rather than hang.
Do I need an account?
No. It needs no account to use, and there is no limit on how many files you run through it.
Is there a watermark?
No. Nothing is added to the file.
What happens to my file?
It stays on your device. The counter at the foot of every page shows bytes sent and third-party requests, so you can check that rather than take our word for it.