Compress PDF

Reduce the size of a PDF. Light mode keeps text selectable; strong mode turns pages into compressed images, which suits scanned documents.

Loading the tool

Your PDF is processed on your device and is never uploaded. Strong mode makes text unselectable. If the result is not smaller, you get your original file back.

At a glance

Runs
In your browser, on your device
Works with
PDF
Largest file
100 MB
Cost
Free, no account needed

How to use Compress PDF

  1. Choose a PDF.
  2. Pick Light or Strong compression.
  3. Select Compress PDF and compare the sizes.

Privacy and limits

This tool runs in your browser. The file you choose is read and processed on your device and is never uploaded to our server. Because your device’s memory does the work, files are limited to 100 MB.

Questions

Is Compress PDF free to use?
Yes. You do not need an account and there is nothing to pay.
Is my file uploaded anywhere?
No. The file is processed inside your browser tab and stays on your device. Closing the tab clears it.
Is there a file size limit?
There is no upload limit because nothing is uploaded, but your device’s memory is used. This tool is set to accept files up to 100 MB.