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WoowPDF

PDF Security Tools

Protect your PDF documents

4 tools

Protect PDFSecure PDFs with password protection and permission settings. Add password to prevent unauthorized access and Remove PDF PasswordUnlock password-protected PDFs instantly. Remove PDF passwords with smart auto-guess feature or manual entry. Sign PDFDraw, type or upload your signature and add it to any PDF, together with initials, text, the date and check maRedact PDFBlack out names, account numbers, emails and any other private details for good. Search and mark text automati

About PDF Security

Protect and unlock PDF files

PDFs often carry contracts, invoices, medical records and other sensitive information. The tools in this category help you control who can open a document and what they can do with it, and let you remove a password from your own files when it is no longer needed.

Which tool should I use?

  • Add a password: Protect PDF encrypts the file with AES-256, the strongest encryption in the PDF standard, and can also block printing, copying and editing.
  • Remove a password: Remove PDF Password creates an unlocked copy of a PDF you can already open, so you no longer have to type the password every time.
  • Remove hidden information: Clean PDF strips metadata, comments and embedded scripts before you share a file.
  • Mark ownership: a watermark such as "Confidential" discourages copying and shows where a document came from.

Good password habits

Use a long passphrase rather than a short word, send the password through a different channel than the file (for example, email the PDF and text the password), and keep a copy of it somewhere safe: we never store passwords, so a forgotten one cannot be recovered.

How your files are handled

Encryption and password removal run on our servers over an encrypted connection. Your file and password are used only for the conversion and are deleted immediately afterwards. Only unlock files you own or have permission to change.