The PDF filters catalog files of the “Portable Document Format” defined by Adobe for the “Acrobat” products. The filter called “PDF (TEXT) Filter” catalogs documents of the file type “TEXT” created by Acrobat 1.0. The filter called “PDF 2.0 Filter” catalogs documents created by Acrobat 2.0. These documents have the file type “PDF ” (note the space character at the end).
In order to create a thumbnail from a PDF file that contains JPEG compressed thumbnails the filter needs QuickTime to be installed.
The following type-specific information is available for PDF documents:
Pages: The total number of pages in the PDF document.
Creator: The name of the person who created the document (if available).
Author: The name of the author of the document (if available).
Producer: The software that created the document (e.g. “PDF Writer”).