Nitro PDF Professional User Guide

© 2008 Nitro PDF Software
To import comments into a PDF:
10. Security
1. On the Review tab, in the Review group, click Migrate .
2. Click Import Comments.
3. Select the same file that contains different comments in it.
Commenting 61
With Nitro PDF Professional you can secure your PDF files with password- or certificate-based security, and
once secured, your PDFs are protected with high-level 128-bit RC4 or 128-bit AES encryption.
You can apply two different sorts of security to control who can access your files and what they can do with
the files when they receive them:
· Open file. This security locks a file so that only users with the correct ‘key’ can open the file.
Depending on the type of security you use, only users with the correct password, or an approved
digital ID will be able to open and view the file.
· File usage permissions. This security can lock (or turn off) particular functionality once a PDF file is
opened. For example, you could disallow users from printing or copying text from the PDF. This type
of control of document usage works particularly well for certificate-based security as you can allow
different usage on a recipient-by-recipient basis.
To view the security in a file:
1. Click the Nitro PDF Button, and then click Document Properties.
2. Click the Security tab.
10.1 Permission settings
The usage permission settings let you restrict what features can be used when a recipient opens a file you
have secured. This means, for example, that you can distribute documents that can’t be edited or printed,
but can be opened and viewed. Using these permission settings with digital ID certificate-based security
gives you even greater flexibility as you can set different permissions for each individual recipient of your
file.
The usage permissions you can control include:
· Printing. Control the user’s ability to print the document, and at what resolution quality.
· Modify document. Control the user’s ability to edit the contents of a document.
· Content copying or extraction. Control the user’s ability to copy content from a document.
· Content accessibility enabled. Control the user’s ability to use accessibility tools to access PDF
documents.
· Commenting. Control the user’s ability to add notes, text highlights, and drawing markups.
· Form field fill-in or signing. Control the user’s ability to fill in forms and digitally sign documents.
· Document assembly. Control the user’s ability to insert pages into and extract pages out of PDF
documents.
· Access for screen readers. Allow text to be accessed by screen-reading software for users with a
visual impairment.