Question 1

Does my PDF get uploaded anywhere?

Accepted Answer

No. The compression runs in your browser tab. We never see the file, and our servers never receive it.

Question 2

Is it free? How do you pay for it?

Accepted Answer

Yes, free for everyone. The site is funded by ads shown around the tool (never on top of your file content).

Question 3

Will my PDF lose quality?

Accepted Answer

Depends on the preset. Light keeps everything as is. Recommended trades a bit of sharpness for size. Extreme makes pages noticeably softer.

Question 4

How big a file can I compress?

Accepted Answer

Up to 100 MB per file. Larger PDFs run, but big rasterization passes can be slow on older devices.

Question 5

Does it work on encrypted PDFs?

Accepted Answer

Not yet. Remove the password first in your PDF reader, then try here.

Question 6

Which browsers are supported?

Accepted Answer

Modern Chrome, Firefox, Edge and Safari (16.4+). Older browsers without OffscreenCanvas won't work.

Question 7

Why is there no account or login?

Accepted Answer

There's nothing to save. Files don't leave your device, so there's no history, no library, no cloud.

Question 8

What else are you adding?

Accepted Answer

Merge, split, rotate, watermark, and image-to-PDF. All client-side, same privacy story.

PDF tools that don't see your files.

Questions people ask