PDFlib TET PDF IFilter 4.0 Manual

2 Indexing PDF Contents
2.1 PDF Document Domains
PDF documents are much more than just a set of pages: they may contain text in other
places, such as annotations and bookmarks, and make use of metadata in Adobe’s XMP
form or as classical document info entries. The places in a PDF document which may
contain text are referred to as PDF document domains. The list below describes all PDF
document domains along with notes how to display the corresponding text in Acrobat.
The list also contains the default actions of TET PDF IFilter for all document domains. In
short, TET PDF IFilter will index the text in all relevant locations. As a result, you may
get search hits for documents where it is not obvious at first glance why a hit is produced.
Since search term highlighting is generally not available in IFilter clients, it is important
to know how to locate the search term in the result documents. Remember that
the searched text may be present in a location different from the actual page contents,
and refer to the list below if you have trouble locating the search text in a PDF document
where TET PDF IFilter reports a search hit.
Notes regarding the descriptions below:
> Searching »Multiple PDFs« with Acrobat refers to the following kind of search: Edit,
Search and in the Look In: pull-down select a folder of PDF documents.
> Some of the descriptions refer to the property set collections documentXMP,
imageXMP, shell, pdf, and internal. These can be enabled in the XML configuration file
(see Section 3.3, »Predefined Metadata Properties«, page 41). By default, the shell and
internal property set collections are enabled, while the pdf, documentXMP, and
imageXMP property set collections are disabled. See Section 3.3, »Predefined Metadata
Properties«, page 41, for more details on property set collections.
> The notation @indexNestedPdf refers to an attributes in the XML configuration file
(see Section 4.2, »XML Elements and Attributes«, page 65).
Text on the page. Page contents are the main source of text in PDF. Text on a page is
rendered with fonts and encoded using one of the many encoding techniques available
in PDF.
> How to display with Acrobat 8/9: page contents are always visible
> How to search a single PDF with Acrobat 8/9: Edit, Find or Edit, Search. TET PDF IFilter
may be able to process the text in documents where Acrobat does not correctly map
glyphs to Unicode values. In this situation you can use the TET Plugin. The TET Plugin
offers its own search dialog via Plug-Ins, PDFlib TET Plugin... TET Find. However, it is
not intended as a full-blown search facility.
> How to search multiple PDFs with Acrobat 8/9: Edit Search and in Where would you like
to search? select All PDF Documents in, and browse to a folder with PDF documents.
> TET PDF IFilter: page contents are always indexed
Predefined document info entries. Classical document info entries are key/value
pairs.
> How to display with Acrobat 8/9: File, Properties...
> How to search a single PDF with Acrobat 8/9: not available
2.1 PDF Document Domains 19