PDF Encrypt / Decrypt Tool
Password-protect a PDF or remove the password — one combined client-side tool.
Loading PDF Encrypt / Decrypt Tool…
About the PDF Encrypt / Decrypt Tool
PDF Encrypt / Decrypt combines protection and unprotection into a single workflow. Upload a PDF, pick Encrypt to add a user password, or Decrypt to remove a password you already know. Everything happens in your browser — the file and the password never travel over the network.
How to use
- Pick the mode: Encrypt or Decrypt.
- Select the PDF file.
- Type the password and press Process & download.
Benefits & key features
- One tool for both directions — no app switching.
- Standard PDF password encryption that Adobe Acrobat, Preview and browsers all understand.
- Runs entirely on your device, so confidential contracts stay confidential.
- Safe fallback if you've forgotten a specific encryption workflow.
Pro tip
Encrypt mode rasterises the PDF (text becomes non-selectable image) — that's the trade-off of pure client-side encryption. Use a password manager to store the resulting password.
Why choose toolsfy for PDF tools?
Cloud-based PDF editors ask you to upload sensitive invoices, contracts or passport scans to servers you will never see — and then offer a "premium" plan to remove watermarks they added themselves. toolsfy turns that model upside down: every PDF operation on this page runs locally in your browser using the same modern Web APIs Chrome, Edge and Firefox ship with. Your file never leaves the device, no account is required, and there is no artificial cap on pages or size.
Common use cases
- Lawyers and accountants cleaning up scanned bundles of evidence before a client meeting, without sending them through a third-party server.
- University students assembling a single submission-ready PDF from multiple chapters, diagrams and reference pages — on a laptop with flaky campus Wi-Fi.
- Small-business owners stripping metadata, rotating scans, or watermarking product manuals before sharing them publicly on their website.
Frequently asked questions
Are my PDF files uploaded anywhere?
No. Every operation happens inside this tab using the PDF-lib / pdf.js libraries loaded from a public CDN. The file bytes never travel to a toolsfy server.
Is there a file-size or page limit?
The only limit is your device's available memory. A mid-range laptop handles hundreds of pages comfortably; a phone handles smaller files well but may slow down past 50 MB.
Do I need Adobe Acrobat or any desktop software?
No. A modern browser is all you need. The output PDF is standards-compliant and opens in Acrobat, Preview, Foxit and every other mainstream reader.