Compress PDF online and check the result

Make a document easier to send or store. Savings depend on its content and existing compression; a fixed reduction is not guaranteed.

Open the free tool

How to do it

  1. Open Compress PDF and select a copy of your file.
  2. Choose optimization or scan compression and read the selected mode’s notice.
  3. Prepare the result, compare file sizes and check readability before downloading.

Frequently asked questions

Is the file uploaded for compression?

No. This local tool processes the document in your browser.

Why does a PDF barely get smaller?

An already optimized PDF may have little room for further reduction. Image content and quality affect the result.

PDF guides

Choose a task and check the steps before starting.

Local tools are free. Private storage and AI have separate access and conditions.