Add PDF password protection to your file to protect sensitive content. When you encrypt a PDF, only people with the password can view the file content.

Discover how to encrypt a PDF file to keep sensitive information secure via email. Our guide provides easy steps and helpful tips for protecting PDFs.

Dec 5, 2025 · Select All tools > Protect a PDF. In the left pane, select Protect with password. In the dialog box that opens, select if you want to set the password for Viewing or Editing. …

Use the free online PDF password protection tool from Adobe Acrobat to keep your files secure. Simply click ‘ Add a Password ’ to encrypt your PDF and restrict access to only those you …

Learn how to secure a PDF file. Secure your sensitive documents and protect PDFs with passwords to ensure only authorized users can access them.

If you’re working with sensitive information, you have to protect it. Learn how to easily encrypt with password and apply permissions to PDF files to prevent copying, changing, or printing your …

Add PDF password protection with the Adobe Acrobat online tool for free. By adding a password to your PDF file, you can limit access and only allow people with the password to view the file …

Nov 10, 2025 · Learn how to add a password to your PDF to protect others from opening or editing the PDF file. Protecting your PDF files prevents unauthorized access, protects …

Dec 5, 2025 · Learn how to use certificates to encrypt PDF documents in Adobe Acrobat, ensuring only intended recipients can view the contents.

Aug 8, 2025 · Learn how to password protect PDFs and encrypt sensitive files to keep client data secure and compliant across devices.