On the Acrobat on the web homepage, select Edit > Protect a PDF.
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- Acrobat on the web user guide
-
Get set up
- Learn the basics
- Access the app
- Preferences & settings
-
Create PDFs
- Convert to PDFs
- Create PDFs with templates
-
Edit PDFs
- Edit text, images, and objects
- Organize documents
-
Share, review, and export
- Share documents
- Review PDFs
- Export and print
-
E-sign documents
- Add e-sign branding
- Request e-signatures
- Manage agreements
- Work with Webforms
- Collect online payments
- Fill and sign
-
Manage cloud storage
- Manage Adobe cloud files
- Manage third party storage
-
Use Acrobat extensions
-
Acrobat for Microsoft Teams
- Access Acrobat admin settings
- Edit PDFs in Acrobat for Microsoft Teams
- Supported languages for Acrobat in Microsoft Teams
- Acrobat for Microsoft Teams overview
- AI-powered meeting summaries and insights
- Resolve issues in Acrobat for Microsoft Teams
- Collaborate on PDFs in Microsoft Teams
- Install Acrobat for Microsoft Teams
- Customize Acrobat for Microsoft integrations
-
Acrobat for SharePoint and OneDrive
- Acrobat for SharePoint and OneDrive overview
- AI powered document summaries and insights
- Configure browsers for Acrobat in SharePoint and OneDrive
- Install Acrobat for SharePoint and OneDrive
- Acrobat for SharePoint and OneDrive installation overview
- Uninstall Acrobat for SharePoint and OneDrive
- Use Acrobat to update files in SharePoint and OneDrive
- Access Acrobat admin settings
- Acrobat for Microsoft Outlook
- Acrobat for Microsoft 365
- Adobe PDF services connector
-
Acrobat for Microsoft Teams
-
Troubleshoot
- Installation issues
- Printing issues
- Feature issues
- Limitations and known issues
Protect PDFs
Last updated on
Sep 10, 2024
Learn how to add password security to a PDF.
You can secure your PDF files by easily setting passwords through Acrobat on the web tool. This ensures your documents remain private and protected from unauthorized access.
Note:
After setting the password, users must provide the password to view the PDF.
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In the dialog box that opens, select the file location from the top menu, select the file you want to protect, and then select Continue.
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In the Protect PDF dialog box that opens, type the password in the Set password field and re-enter it in the Confirm password field.
For each keystroke, the password strength meter evaluates your password and indicates the password strength.
For each keystroke, the password strength meter evaluates your password and indicates the password strength. -
Select Set password.
Tip:You can access recently secured files in the Recent section of the Home page.
A secured copy of your PDF, labeled <filename>_protected, is saved on Adobe cloud storage. The password-protected PDF loads with a prompt to enter the password to access it.
