Password-Protected PDF Files
PDF Professional respects security settings applied to PDF files. PDF files can be protected by passwords and security settings. Two of these settings are examined by PDF Professional : Printing permitted or prohibited, and Copying Content permitted or prohibited.
Open password
This grants access to a file in accordance with its security settings.
Permissions password
This grants full access to a file regardless of its security settings.
PDF Professional behavior
If you try to open a protected PDF file, a dialog box will invite you to supply the necessary password. Enter this 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.
|
PRINT |
COPY |
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 Note1. |
|
YES |
YES |
Open password sufficient |
Processed using content information: editable text is generated. See Note2. |
Note1
Handling of image-only pages depends on the state of the Image-only pages selection box under Processing options in the Standard, Legal, Spreadsheet and Form panels. The selection box provides the following choices: Convert Page with OCR / Skip / Add to Document as Image.
Note2
If the program uses the PDF content information, a faster and more accurate result can be achieved (as compared to OCR).