Question 1

How much will the file shrink?

Accepted Answer

It depends on the content: PDFs with heavy metadata and redundant structure shrink noticeably, while scanned-image-heavy PDFs shrink minimally since images aren't re-encoded.

Question 2

Why doesn't it re-encode images?

Accepted Answer

To guarantee fully local, safe, and fast processing without silently degrading image quality without your explicit consent.

Question 3

Is text or formatting lost?

Accepted Answer

No, all visual content in the document is preserved unchanged.

Question 4

Is personal data removed?

Accepted Answer

Yes, the tool clears document metadata such as author, subject, keywords, and creator information.

Question 5

Is my file stored anywhere?

Accepted Answer

No, the file is processed entirely in browser memory and never sent to a server.

PDF Compress

How to use it

Frequently asked questions

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