Do I need to create an account?

No. Every tool on PDFzen works without sign-up or registration.

Are my files uploaded anywhere?

No. Files are processed in your browser and never leave your device.

Yes. All tools are free to use with no watermark.

Is there a file-size limit?

Browsers limit how much memory a tab can use, so extremely large PDFs may not process. For typical documents it works fine.

Private PDF tools — no sign-up required

Updated for 2026

Every PDFzen tool runs in your browser. No account to create, nothing uploaded to anyone, no watermarks.

Compress a PDF now — no sign-up

Need a PDF task done but hate creating accounts? PDFzen works entirely in your browser — open a file, get the result, done.

Why "no sign-up" matters

Private: your files are processed on your device and never sent to a server.
Fast: no login, no email confirmation, no waiting — just the tool.
No limits from accounts: no paywall, no watermark, no "upgrade to continue".

Everything runs offline in your browser

Because the engine is JavaScript running locally, you can use PDFzen on a train, on a plane, or on a locked-down work laptop — as long as the page loaded once. That is the opposite of cloud tools that need your file in their datacenter.

Tools you can use right now

Honest limits

Browser-based processing has ceilings: very large files are limited by device memory, and "exact target size" compression is approximate. For most everyday PDFs this is more than enough — and you keep full privacy.