Password protect PDF files
Add PDF password protection with the Adobe Acrobat online tool. It means a password is always needed to view the contents of your PDF file.
Restrict unauthorized access
When you password protect a PDF, you control file access. We’ll let you know if your password is weak, medium, or strong.
Add a password to your PDF
Adobe delivers trusted document security. Add a password to your important PDFs to secure your file. Compatible with any browser on Mac or Windows.
Work wherever you are
Adobe Acrobat online services let you protect, combine, convert and sign PDFs from anywhere.
Do more with your PDFs
Need more PDF power? Subscribe to Adobe Acrobat PDF Pack for a set of tools you can use on desktop, mobile or online.
Get the best with Adobe
Use the highest quality online tools from the inventor of PDF. Sign in to do more with your stored files.
