In PaperStream Capture, you cannot specify the total number of pages in an output PDF file as part of the file name.
For details about the values that can be specified in a file name, see "File Name Option" in the User's Guide 
.
You can, however, include the total number of pages in an index file.
When you output an index file, select "Total pages in current document" in [Select Data].
For details about the values that can be output to an index file, see "Index Information File Format (PaperStream Capture)" in the User's Guide .