Customize Counter Format

PDF Creator 1.4.2.
The pdf is set to autosave and picks up the counter field as its filename
The field under Auto save it set to 15digits.
Is there a way to change the number of digits so filename is only 5 digits

Current filename : 000000000000123.pdf

Proposed Filename : 00123.pdf


I don't think this is possible with version 1.4.2 (which is no longer supported since ~ 2014).
In the current version 3.5.1 it can be done with <Counter:00000> you could try this in the old version or update if it doesn't work there.

Best regards