Acrobat 9 Family of Products
Validating Signatures
Security Feature User Guide
JavaScript and Dynamic Content Won’t Run 125
7.6.1 JavaScript and Dynamic Content Won’t Run
High privilege JavaScript and dynamic content in documents will only run if you have explicitly trusted the
sender’s digital ID certificate for such actions. Because scripts and dynamic content represent a security
risk, Acrobat prevents some of those operations by default. For details, see
“Certificate Trust Settings” on
page 35
.
7.6.2 Certifying a Document is Prevented
Only one certification signature is allowed in a document; therefore, it must be the first one.
7.6.3 Form Field Fill in, Signing, and/or Other Actions Don’t Work
Once a document is signed or certified, at most only form fill-in, additional signatures, and addition of
annotations is allowed. All other operations on the document are disabled as they would invalidate the
signature. A certified document may impose further restrictions.
Locking the document after signing also reduces the allowed actions on a document to almost none.