Adobe ACROBAT 3D Manual page 595

Advanced options for index descriptions
When you create a new index, you can enter the following information in the Options dialog box.
Index definitions (left), index options (right)
Do Not Include Numbers
Select this option if you want the index to exclude all numbers that appear in the document text.
Excluding numbers can significantly reduce the size of an index, making searches faster.
Add IDs To Adobe PDF v1.0 Files
Select this option if your collection includes Adobe PDF files created before Adobe v2.0 of the
application, which did not automatically add identification numbers. ID numbers are needed when
long Mac OS file names are shortened as they are translated into DOS file names. Acrobat 2.0 and
later automatically adds identifiers.
Do Not Warn For Changed Documents When Searching
When this option is not selected, a message appears when you search documents that have changed
since the most recent index build.
Custom Properties
Use this option to include existing custom document properties in the index; only custom document
properties that already exist in the PDF documents you index are indexed. The custom properties
that you specify appear as a search option in the Search PDF window's additional criteria pop-up
menus when you search the resulting index. (See Adding custom properties.)
Note: When you create custom fields in a Microsoft Office application in which the Convert
Document Information option is selected in the PDFMaker, the fields transfer over to any Adobe
PDF files you create.
XMP Fields
Use this option to include custom XMP fields. The custom XMP fields are indexed and appear in
the additional criteria pop-up menus to be searchable in the selected indexes.
Stop Words
Use to exclude specific words from the index search results. (See Excluding specific words from the
index.)
Structure Tags
Use this option to make specific leaf-element tag nodes searchable in documents that have a tagged
logical structure.
Note: The Custom Properties, Stop Words, and Tags settings apply to the current index only. To
apply these settings globally to any index you create, you can change the default settings for custom
fields, stop words, and tags in the Preferences. (See Setting catalog preferences.)