This feature is available only in PaperPort Professional.
In the Default PDF Security dialog box, you can set the default security settings to be applied to all PDF files created inside PaperPort in the future.
Click the Change default button 
in the
Item ribbon. These settings do not apply to PDF files brought into PaperPort
or when PDF files are duplicated.
Click Ask for password before opening the document if you want to restrict opening a PDF file, then enter the password in the text box. The password can contain up to 255 characters.
Click Use a permissions password to restrict printing and editing of the document and specify other security settings, then enter another password in the text box.
The following security settings can only be selected if the permissions
password checkbox is already selected.
Printing allowed
You have the following choices:
Low resolution (150 dpi) allows the document to be printed at maximum 150 dpi.
High resolution lets the document be printed at any resolution. The limitations are only the document’s original resolution and the printer capability.
Changes allowed
You have the following choices:
Inserting, rotating and deleting pages lets the user insert, rotate and delete pages. Stacking and unstacking pages is possible if Enable copying text, images and other content is checked.
Filling in form fields and signing gives the user the right to fill in form fields and use digital signatures in programs that support these features.
Commenting, filling in form fields and signing allows the user to add, delete and change annotations, fill in form fields and use digital signatures, although PaperPort does not support filling in form fields and adding digital signatures.
Any except extracting pages lets the user make all changes mentioned above under Changes allowed, except delete pages. You can use SET tools and modify subject, author, keywords and also apply folder notes.Stacking and unstacking pages in PaperPort is possible if Enable copying text, images and other content is checked.
Enable copying text, images and other content lets the user copy and save as the PDF file contents.
Enable text access for screen reader devices lets the visually impaired read PDF files with screen readers. You can copy, view and index if the document contains text. See OCR if it is an image-only PDF document. If yes, option Printing allowed must be Low resolution or High resolution. Extracting file contents is not allowed.
The Use these settings as default option is grayed in this dialog box. It can be set in the PDF Security dialog box.
Click the Delete Password List button to remove passwords from the password list, so PaperPort will no longer remember them.