Password Protect & Guard PDF Files

Double protect your sensitive and confidential information and data by employing user password and permission password.


Encrypt Your PDF

Two types of passwords safeguard your PDF files A user password is required when you need to open an encrypted PDF while a permission password is used for restricting certain features such as printing, editing and annotating. SwifDoo makes it easier to keep your files from any unwanted access.

How to Protect PDFs with SwifDoo PDF

Open a PDF document with SwifDoo PDF

Click the “Advanced” button and select “Encryption”

Choose how you want to lock your PDF by setting passwords and permissions

FAQs about Protecting PDF

Q:How do i protect my PDFs with Adobe?

Q:How do i remove protection from a PDF?

  • Many PDF program provide both encryption and decryption. Let’s Take SwifDoo PDF for example.
  • 1. Open the password-protected PDF with SwifDoo PDF;
  • 2. Enter the password;
  • 3. Choose “Advanced” and select “Decryption”
  • 4. Enter the Open password again to complete the decryption, and then save the new PDF into the local folder.

Q:How do i protect a PDF from editing?

  • You can protect your PDF file from editing by setting Owner password.
  • 1. Open your PDF document with SwifDoo PDF;
  • 2. Click “Encryption” in the tab of “Advanced”;
  • 3. Tick “Owner Password” to set restrictions for certain behaviors.