PDFlib TET PDF IFilter 4.0 Manual
PDFlib TET PDF IFilter 4.0 Manual
PDFlib TET PDF IFilter 4.0 Manual
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3.3 Predefined Metadata Properties<br />
The following property set collections are built into <strong>TET</strong> <strong>PDF</strong> <strong>IFilter</strong>:<br />
> Shell properties are known to Windows and have user-friendly names. <strong>TET</strong> <strong>PDF</strong> <strong>IFilter</strong><br />
populates all Shell properties which have equivalents in <strong>PDF</strong> documents. Common<br />
examples are System.Author and System.Title, and System.Document.DateCreated. For a<br />
list and description of shell properties see<br />
msdn.microsoft.com/en-us/library/bb763010(VS.85).aspx<br />
> <strong>PDF</strong> properties are specific to <strong>PDF</strong> documents. They are populated from pCOS paths.<br />
Examples are the <strong>PDF</strong> version number, bookmark contents, or page size.<br />
> Document XMP properties cover all predefined document properties in the XMP 2005<br />
specification, see<br />
www.adobe.com/devnet/xmp<br />
> Image XMP properties cover XMP properties which are attached to images in the document.<br />
Image properties are also derived from the XMP 2005 specification.<br />
> Internal properties are auxiliary properties which are not intended for production use,<br />
but as development and debugging aids. They include software version numbers<br />
and the time of indexing.<br />
A full list of predefined properties along with their GUIDs and user-friendly names can<br />
be found in Appendix A, »Predefined Metadata Properties«.<br />
Properties from these collections do not have to be configured individually. However,<br />
they must be enabled as required since not all collections are enabled by default (see<br />
below). You can override predefined properties by assigning the corresponding<br />
GUID+ID combination to a custom property.<br />
XML configuration for enabling property set collections. Some or all of the predefined<br />
property set collections can be enabled with the corresponding attributes in the<br />
Metadata/PropertySetCollection element:<br />
<br />
By default, the Shell and Internal property set collections are enabled, while the<br />
documentXMP, imageXMP, and <strong>PDF</strong> property set collections are disabled. Custom properties<br />
are enabled implicitly if one or more custom properties are specified.<br />
Handling of all predefined and custom metadata properties can be completely disabled<br />
with the metdataHandling attribute of the Filtering element:<br />
<br />
3.3 Predefined Metadata Properties 41
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