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 a secured PDF while a permission password is used for restricting certain features such as printing, editing and annotating. SwifDoo PDF makes it easier to keep your files from any unwanted access.

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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?

1. Open the PDF and choose “Tools” and then select “Protect”;
2. Choose “Encrypt” and tap “Encrypt with Password”; click Yes if Acrobat asks you to confirm that you want to change the document;
3. In the pop-up box, set an Open password to protect the current document. Tick the “Require a password to open the document”.

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.