mypdf

Files stay on your device. Most tools (merge, split, sign, edit) run entirely in your browser; nothing is uploaded.

Compress PDF

Make a PDF smaller (easier to email or upload). Shows the size before and after.

Runs on the server

Note: Available in the self-hosted build.

Drop a PDF file here, or click to choose

.pdf · up to 100.0 MB

How to use Compress PDF

  1. 1Drop in your PDF.
  2. 2Pick a quality level (more compression vs. higher quality).
  3. 3Download the smaller file. You'll see the before and after size.

Read the full guide: How to make a PDF smaller

Frequently asked questions

What happens to my file?
It's sent to the server, processed in a temporary folder, returned to you, and deleted right away. Nothing is kept and nothing is shared.
Will it ruin the quality?
You choose the balance. Lighter settings shrink the file more; higher settings keep images crisp.
Is it free?
Yes, completely free, with no account and no sign-up.

Your file is sent to our server, processed, and deleted right after you get the result back. Learn more.