About 3,900,000 results
Open links in new tab
  1. Password protect PDF and encrypt a PDF for free | Acrobat - Adobe

    Click the Select a file button above, or drag and drop a PDF into the drop zone. Enter a password, then retype it to confirm the password. Click Set password. Download the password-protected …

  2. How to make a PDF non-editable as a read-only PDF | Adobe …

    Learn how to make your PDF non-editable to protect your documents. Our step-by-step guide will help you keep your sensitive information safe and secure.

  3. Password protect a PDF - Adobe

    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 …

  4. Password protected PDFs and PDF security | Adobe Acrobat

    How to add passwords and permissions to PDF files: Open a file in Acrobat and choose “Tools” > “Protect.” Select whether you want to restrict editing with a password or encrypt the file with a …

  5. Add passwords to PDFs - Adobe Inc.

    2 days ago · 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. Advanced …

  6. How to password protect a PDF on a PC | Adobe Acrobat

    How to password protect a PDF. Easily add a layer of security to your PDF files. Follow these six steps to password protect PDFs on your PC.

  7. How to secure a PDF file. - Adobe

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

  8. Protect a PDF File with a Password | Adobe Acrobat

    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 …

  9. Password protect a PDF on Windows 10. - Adobe

    Add more control to who sees your documents by using a password to protect your PDF. Learn how to password protect a PDF file in Windows 10 here.

  10. How to password protect a PDF | Adobe Acrobat

    We’ll show you how to password protect a PDF for free and restrict certain features, such as printing and editing, in Adobe Acrobat.