User-friendly, affordable, and packed with different features, DocHub is a healthy and cost-efficient alternative to Nitro Productivity Suite. Try it now and learn how to squeeze the maximum of our solution with easy-to-use feature shortcuts.
In this tutorial, Nitro Pro provides password security features to restrict access and prevent changes to documents. To secure a document, open it, go to the Protect tab, and choose Password Security. You can set a password to open the document or specify changes allowed. After setting and finishing security options, close and reopen the document for the settings to take effect.