
Keep up to date with product announcements, events, news and tips. Check out and subscribe to the PDF Blog, written by the Nitro team.
Learn how Johnson, Price and Sprinkle saved thousands of dollars in printing, faxing, paper and document archival costs by deploying Nitro PDF Professional.
Whilst other products have met our basic needs, the business impact of Nitro PDF Professional is much more significant. It's feature rich, easy to use, fully integrated within all of our business applications and it has proven to be very much worth our while to make the change across to Nitro PDF Professional throughout the organization.
Drew Hart
Technical Support & Training Manager
World Vision
Sign up to receive occasional email notifications of product updates and special offers.
The built-in security features of PDF give you exceptional control over the PDF files you create: you can encrypt and secure PDF files to prevent unauthorized access, restrict sensitive operations, and more.
Nitro PDF Professional supports the same password and certificate security that both Adobe® Acrobat® and Adobe Reader use, so whether files are secured in Nitro PDF Professional or another application, secure PDF files can be distributed amongst trusted recipients reliably, no matter what PDF viewer is used.
The PDF encryption in Nitro PDF Professional locks the contents of your PDF files with 128-bit RC4 or 128-bit AES level encryption, guarding against disclosure of sensitive information in the case of loss or theft.
Passwords give you a quick way to to restrict access to and usage of your content to people who have the password used to secure the PDF file. With Nitro PDF Professional you can use two different types of passwords:
Digital certificates let you secure PDF files so they can only be opened and used by people who have exchanged digital certificates. Certificate-based PDF security has many advantages over password-based security:
With Nitro PDF Professional you choose what others can and can't do with your PDF files — document viewing, printing, editing, and copying can all individually be turned on or off. Using these permission settings with certificate-based security gives you even greater flexibility as you can set different permissions for each of your recipients. Nitro PDF Professional lets you to restrict printing, content copying and modification, commenting, accessibility, form filling and signing rights on a user-by-user basis.
Digital signatures in PDF files work much like traditional 'inked' signatures but have additional benefits:
When you sign a PDF file, a snapshot of the file content is tied to your digital certificate and encrypted inside the document. When it is reopened again, Nitro PDF Professional (or another PDF viewer) validates each signature, checks for changes to the file since it was signed, and reports if any illegal changes have occurred.
Excel and Powerpoint are registered trademarks of Microsoft Corporation. Acrobat is a registred trademark of Adobe Systems, Inc.