Setting passwords for PDF files
You can apply a password to a PDF file to control access to the file. You can add different types of passwords to a file. You can add an open password to secure a file and prevent someone from opening it. You can also add a permission password if you want to allow the file to be opened but you want to restrict access to other tasks, such as printing or editing. If you apply only an open password, recipients of the PDF file can both open and edit the file content. If you apply a permission password, you have more control over which actions are permitted.
To maximize the security of the PDF file, you can apply both types of passwords to a PDF file concurrently. If both passwords are applied, the recipient of the file can use either password to open the file for viewing in Adobe Acrobat or Adobe Reader. For example, if you want to allow someone to edit the file in Adobe Acrobat or print the document in Adobe Acrobat or Adobe Reader, recipients must use the permission password.
To add an open password to a PDF file |  |
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1.
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Click File
 Publish to PDF. |
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2.
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Click Settings.
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The Publish to PDF settings dialog box appears.
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3.
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Click the Security tab.
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4.
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Enable the Open password check box.
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5.
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Type a password in Open password text box.
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Passwords are not allowed in PDF files that are intended for archiving and saved with the PDF/A option.
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To add a permission password to a PDF file | |
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1.
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Click File
Publish to PDF. |
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2.
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Click Settings.
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The Publish to PDF settings dialog box appears.
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3.
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Click the Security tab.
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4.
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Enable the Permission password check box.
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5.
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Type a password in the Permission password text box.
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6.
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Perform one or more tasks from the following table.
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Passwords are not allowed in PDF files that are intended for archiving and have been saved with the PDF/A option.
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