The security options are controlled by two passwords: the Permission password and the Open password. For more information about choosing a version, see Optimizing PDF files. For example, if you save to Adobe Reader version 6, or lower, it has standard encoding, version 8 has 128-bit encoding, and version 9 has 256-bit encoding. The encryption levels provided by Adobe Reader have increased over time. The level of security that is available is also determined by which version of Adobe Reader you use to create the PDF file. Security options let you control whether, and to what extent, a PDF file can be accessed, edited, and reproduced when viewed in Adobe Reader. You can set security options to protect PDF files that you create. Sign up here to get started.Quick links to procedures on this page: You can test these features out for yourself with a free 7 day trial of Digify. Get instant notifications on your email and Digify mobile app once someone opens your file.Know who has viewed your file, for how long and how many times.Place a watermark on the file, with the recipient’s name on it.Control whether people can print, and if so, how many times.Protect the file against copy and paste, or another copy being made.You can choose whether people can forward the file, or not. They would need to validate their identity with a one-time code before they are allowed access to the file.ĭigify’s features allow you greater control over the files you send: This is more secure than just a password on the file, as it is tied to the identity of the person. While password protection is available as a feature within Digify, there are other options available too, for instance restricting access to only people you invite.

Digify can also protect multiple file formats other than PDF. With Digify, the file can be encrypted using a highly secure AES-256 algorithm using your password. Digify offers a better alternative rather than simply putting a password or passkey on a file.

Password protect existing pdf files