🔒 Files never leave your device

Every tool you need to
work with PDFs

Merge, split, compress, convert, rotate, watermark, protect and unlock PDFs — free, unlimited, and 100% private. Everything happens right in your browser: nothing is ever uploaded.

✓ No uploads — works offline ✓ No sign-up ✓ No file limits ✓ Free forever
📄

Drop files here

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Choose files

Lock a PDF with a password and real encryption

Encrypt sensitive documents with AES-256 — the same standard banks use — so only people with the password can open them. Because PDF WithMe runs entirely in your browser, your unprotected file and your chosen password never travel over the internet. That is a genuine security advantage over upload-based tools.

How to use it

  1. Drop your PDF into the box above.
  2. Choose a strong password and type it twice.
  3. Click Protect PDF and share the encrypted file — the password travels separately, ideally by another channel.

Frequently asked questions

How strong is the encryption?

AES-256, the current industry standard for PDF encryption. Without the password, the contents are computationally infeasible to read.

What if I forget the password?

There is no backdoor — that is the point of real encryption. Store the password somewhere safe, like a password manager.

Why does doing this in the browser matter?

Upload-based tools receive both your document and your new password on their servers. Here, neither ever leaves your device.