UltraPDF: One single easy-to-use document format
UltraPdf must be installed in order to view a .updf document. It may be obtained at no charge from www.ultrapdf.com. The easiest way to view a .updf document is to double-click on it. You can also open *.updf documents from UltraPDF.
Access UltraPDF from the Start menu. Select the "Create UltraPDF document" tab. Add documents and group headers to the document list. Specify the document information. Create your UltraPDF file by clicking "Save UltraPdf (updf) document."
This feature helps you to organize the documents in your UltraPDF document by inserting a group header into the document index.