Xobject (Stream) Access - Adobe 12001196 - Acrobat - Mac Manual

Application Security Guide
For details about setting up trust for cross domain access other than via privileged locations, see
Domain Configuration.

9.6 XObject (stream) access

Preference configuration can be a mystery if you don't take to time to understand related features and
how they interact. For example, enhanced security settings interact with certificate trust settings and Trust
Manager settings. The following provides just one use case where two settings must be configured to get
one feature to work as expected.
Since reference XObjects access external content, security is a concern. Therefore, XObject (external
stream) access requires that such access be granted though the user interface (or registry) and that the
referencing document is specified as trust-worthy when cross domain access is involved.
To configure XObject access:
To configure external content access:
1. Choose Edit > Preferences > Page Display (Windows) or Acrobat > Preferences Page Display
(Macintosh).
2. Configure the Reference XObjects View Mode panel by setting Show reference XObject targets.
3. Set the location of referenced files (if any).
4. Choose OK.
Resource access
To configure trust via the registry:
1. Open the registry editor.
. Go to
HKEY_CURRENT_USER\Software\Adobe\<product>\<version>\TrustManager\cTrustedFolders\cExternalStream.
3. Right click and choose New String.
4. Enter a document ID in the form of t(some integer).
5. Right click on the new ID and choose Modify.
6. Enter the path to the trusted document in the Value Data field.
Go to
HKEY_CURRENT_USER\Software\Adobe\<product name>\<version>\TrustManager\cTrustedFolders\cCrossdomain
and repeat the same steps. Use the same ID and value.
Note
Other XObject settings can be configured via the UI or in the registry as described in the
Reference
Section 9 Trust Methods
for Acrobat and Adobe Reader.
Section 9 Trust Methods
7 Cross
Preference
Page 91