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.
PDF password security you can trust
As the inventor of the PDF file format, Adobe delivers trusted document security. Password protect your PDF with confidence from 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.