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USING ACROBAT 9 PRO
Security
Last updated
9
/30/2011
Restore Default List Of Allowed And Disallowed File Attachment Types
Removes saved settings you chose for opening
attachments. For example, if you chose to always open TMP attachments when prompted, TMP appears in the list of
allowed file attachment types. By clicking Restore, you remove TMP from the list. The Restore button is available only
if you changed the attachment defaults.
Change Settings (Internet Access From PDF Files Outside The Web Browser)
When clicked, lets you specify the default
behavior for accessing the Internet from PDFs. To restrict access to only the URLs you specify, select Let Me Specify
A List Of Allowed And Blocked Web Sites (the default). To allow access to all URLs, select Allow All websites. To
restrict access with all URLs in PDFs, select Block All Web Sites.
Note:
If the options in the Manage Internet Access dialog box are dimmed, select Let Me Specify A List Of Allowed And
Blocked Web Sites. If options are still dimmed, your product could be under an administrator’s control with those
restrictions in place.
To specify a list of allowed and blocked websites, type each URL in the box, and click Allow or Block. Then, specify the
default behavior for Acrobat for websites that are not in the list.
Note:
If you open a protected PDF and receive a prompt to allow or block a URL, select Remember My Action For This
Site. This reply adds the URL to this list.
Load Trusted Root Certificates From An Adobe Server
Allows Acrobat to automatically download trust settings from
an Adobe server.
Ask Before Installing
When selected, prompts the user when new root certificates are downloaded from Adobe. Click
Update Now to check for and install new root certificates immediately.
Open secured PDFs
Documents can be secured in several ways. To view the security settings of a document, open the Security tab of the
Document Properties dialog box. If you have trouble opening a PDF, or if you’re restricted from using certain features,
contact the author of the PDF.
Password protection
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, any tools and options related to those features are
dimmed.
Restricted
If a document is restricted, encrypted, or has a special status, the Security Settings icon
appears to the
left of the document. Click the icon to display the Security Settings pane to see which features are restricted.
Digitally signed
When a document is digitally signed, the digital signature status appears in the document message
bar above the document. A digital signature helps assure the recipient that the document content is valid.
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 in forms and modifying the document. A document
with a valid certificate displays a Blue Ribbon icon
. When you submit a certified form, you are assured that it is
going back to the valid author.
More Help topics
“
Digital signatures
” on page 257
“
Securing documents with passwords
” on page 231
“
Certificate security
” on page 233
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