Password Protect Your PDF

Password protect a PDF online — add a strong open password and optional permission restrictions (no copy, no print, no edit) and download the encrypted file in seconds.

Why teams use Password Protect PDF

PDF passwords are the simplest way to control who reads a confidential document. This tool applies AES-256 encryption (the same standard banks and government use) using a password you choose, so anyone opening the PDF in Acrobat, Preview, Edge, Chrome, or any other reader has to enter the password first. The encryption is applied to the file itself — there's no DRM server, no online check, and no expiry, so the protected PDF works offline, forever, anywhere.

Beyond the open password, you can set permission restrictions: prevent printing, prevent copying of text and images, prevent editing or filling forms, prevent extracting pages. These restrictions are enforced by Acrobat and most major readers. For maximum confidentiality, pair the open password with the no-copy restriction so the document cannot be read without the password and its contents cannot be lifted by someone who has the password.

Common uses: sending client deliverables, sharing NDAs, distributing financial reports, protecting personal documents (passport scans, payslips), and complying with data-handling rules in regulated industries. The original file is never stored permanently — uploads are deleted within 60 minutes — and the password itself is never logged anywhere on our infrastructure.

How it works

  1. Upload PDF — Drop your confidential document
  2. Set Password — Choose a strong password for protection
  3. Download Secured PDF — Share safely with password required

Key benefits

  • 256-bit AES encryption for maximum security
  • Set passwords for opening or editing
  • Perfect for legal and financial documents
  • Compliant with security best practices
  • Works with all PDF viewers
  • No permanent storage — files auto-deleted

Common use cases

  • Protecting contracts before email
  • Securing financial reports
  • Sharing confidential HR documents

Frequently asked questions

Is Password Protect PDF free to use?
Yes — your first conversion is free with no signup. For heavier use, DocumePro offers a £9.99 24-hour Day Pass and a £39.99/month Professional plan with unlimited conversions.
Are my files kept after I use Password Protect PDF?
No. Every uploaded file is permanently deleted from DocumePro servers within 60 minutes under our Non-Persistence Guarantee. Nothing is retained, shared, or used to train AI models.
Do I need to install any software?
No — Password Protect PDF runs entirely in your browser. There's nothing to install and no plug-in required. It works on Windows, macOS, iOS and Android.
Is DocumePro suitable for UK legal, finance and accounting teams?
Yes. DocumePro is UK GDPR-aligned, hosted on UK/EU infrastructure, and built specifically for solicitors, accountants, bookkeepers and finance teams that handle sensitive client documents.

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Drop your PDF above, set a strong password, and download the AES-256 encrypted version — ready to share confidentially in seconds.

See pricing · Read the security promise