This feature is also available in our multi-tool page. Check it out for enhanced page-by-page UI and additional features!

lock Add password (Encrypt)

Select PDF to encrypt

Click or Drag & Drop

Maximum file size: 100.0 MB

Owner Password Restricts what can be done with the document once it is opened (Not supported by all readers)

User Password Restricts the opening of the document itself

Encryption Key Length Higher values are stronger, but lower values have better compatibility.

Permissions to set (Recommended to be used along with Owner password)

Prevent assembly of document

Prevent content extraction

Prevent extraction for accessibility

Prevent filling in form

Prevent modification

Prevent annotation modification

Prevent printing

Prevent printing different formats