Document Macros
Macros are used in several settings of PDF-XChange Standard. 'Macro' is an abbreviation of 'macroinstruction' - a specification that determines how input sequences of characters are mapped in the output process. This means complicated components of the output process can be reduced in the input process, which makes the work involved both less intensive and less error-prone.
The PDF-XChange Standard macros are used when files are saved. Macros must be added in square brackets after file names. All macros are detailed below. Unless otherwise specified, macros add the same details as the macro name to the file name:
•Application Name
•Document Name - see here for further information.
•Document Path
•Date - see here for further information.
•Year
•Month
•Day
•Time
•Hour
•Minute
•Seconds
•Pages Count
•Computer Name
•User Name
•Environment Variable
A technical explanation of how macros function is available here.