How to Protect PDF
Securing PDF files is essential when working with sensitive or confidential information. Whether it's business reports, legal documents, or personal data, PDNob PDF Editor provides reliable tools to help you control access and protect your content.
On PC, you can easily add passwords, define permission restrictions, remove existing security, and manage document protection in just a few steps. Follow the guide below to safeguard your PDFs efficiently using PDNob.
1. Add an Open Password to a PDF
An open password restricts access to your PDF. Anyone trying to view the file must enter the correct password before opening it.
- Open your PDF file in PDNob PDF Editor.
- Navigate to the top toolbar and click Protect.
- Click Password and set an Open Password to secure the file.
2. Add a Permissions Password (Restrict Editing, Printing, Copying)
A permissions password (also called a master password) allows you to control how others interact with your PDF. You can restrict actions such as editing, printing, or copying content.
After opening the Encrypt settings, you will see two main options: "Open PDF" and "Set editing and page extraction password". The second option lets you define specific permissions.
You can configure restrictions for actions like printing, copying text, adding comments, inserting or deleting pages, and filling forms, depending on your requirements.
3. Remove Password or Permissions from PDF
If your PDF already has password protection or restrictions, you can remove them using PDNob—provided you have the correct password.
- Open the protected PDF file and enter the required password to access it.
- Go to the Encrypt settings and uncheck the "Set open password" option to remove protection.
- Confirm the changes and click Save to apply and remove the password or restrictions.
