Password-Protected PDF files
Power PDF and PDF Convert both respect security settings applied to PDF files. PDF files can be protected by passwords and security settings. Two of these settings are examined by the programs: Printing permitted or prohibited, and Copying Content permitted or prohibited.
Two types of passwords are in use:
Open password: Grants access to a file in accordance with its security settings.
Permissions password: Grants full access to a file regardless of security settings.
If you try to open a protected PDF file, a dialog box will prompt you to enter a password. Enter the password carefully because only one attempt is permitted.
The following table summarizes the program behavior when a protected PDF file should be converted and only the open password is given. This information is equally true for 40-bit, 128-bit and 256-bit encryption.
|Message||Document conversion when only open password given|
|No||No||Permissions password necessary||Refused|
|No||Yes||Permissions password necessary||Refused|
|Yes||No||Permissions password recommended||The result, if any, contains image-only pages. See the note below the table.|
|Yes||Yes||Open password sufficient||Processed using content information: editable text is generated. If the program uses the PDF content information, a faster and more accurate result can be achieved (as compared to OCR).|
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