Operation Manual

303

Security

Last updated 4/7/2015

Opening secured PDFs

Note: For a full list of articles about security, see Overview of security in Acrobat and PDF content .

Acrobat DC and Acrobat Reader DC warn you any time you try to open a URL (website) or a file attachment that uses

a disallowed file type. URLs and disallowed file types are potentially dangerous because they can transfer or run

programs, macros, or viruses that can damage your computer. Examples of disallowed file types include .exe and .zip

files.

Documents can be secured in several ways. To view the security settings of a document, choose File > Properties in

Acrobat or Reader. From the Document Properties dialog box, click the Security tab. If you have trouble opening a PDF,

or you’re restricted from using certain features, contact the author of the PDF.

Password protected A password-protected PDF either requires a password to open or a password to change or remove

restricted operations. If a document has restricted features, tools and options related to those features are dimmed.

Certified Certifying a document assures recipients that the document is authentic. Certifying signatures also include

information to allow or disallow particular actions, such as filling forms and modifying the document. When you

submit a certified form, you are assured that it is going back to the valid author. A document with a valid certificate

displays a Blue Ribbon icon

. A PDF Portfolio with a valid certificate displays a Signature Badge.

Adobe LiveCycleRights Management ES configured Adobe LiveCycleRights Management ES (ALCRMS) lets you

manage accounts and configure security policies for your organization. ALCRMS lets you apply a policy to documents

without the need for digital signatures and certificates.