Working With Attachments; Default Behavior: Black And White Lists - Adobe 22002486 User Manual

Acrobat 9 Family of Products
Security Feature User Guide

9.5 Working with Attachments

Before attempting to modify the application's default behavior, you should understand the default
behavior. For details, see the following:
"Default Behavior: Black and White Lists" on page 141
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"Adding Files to the Black and White Lists" on page 144
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"Resetting the Black and White Lists" on page 144
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"Allowing Attachments to Launch Applications" on page 145
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9.5.1 Default Behavior: Black and White Lists

Black Lists and White Lists
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Black Lists and White Lists
The Acrobat family of products always allow you to open and save PDF and FDF file attachments.
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However,
the file extension is associated with the requisite program.
File types on the black list: These can be attached, but a warning dialog appears stating that they

cannot be saved or opened from the application. No actions are available for these files.
File types not on any list: These can be attached without a warning dialog. Trying to open or save

them invokes a dialog which allows the user to perform the action just once or to add them to the
good type (white) list or bad type (black) list.
Why Attach a File that's on the Black List?
Table 4 Default prohibited file types
Extension
.ade
.adp
.app
.asp
.bas
.bat
.bz
.bz2
Figure 100 Automatic updates
(Table 4)File types on the white list: These can be attached and may be opened or saved if
Description
Access Project Extension (Microsoft)
Access Project (Microsoft)
Executable Application
Active Server Page
BASIC Source Code
Batch Processing
Bzip UNIX Compressed file
Bzip 2 UNIX Compressed file (replaces BZ)
External Content and Document Security
Working with Attachments 141