I create a lot of interactive forms using sum(+) calculations and picking appropriate fields. In form I am now working on I need calculation to subtract one field from another and not finding a way to make this work. Is there a simple way to do this?
Sure, you can use "Simplified Field Notation"- the next option down from the "Value is the" used for the sum (+) calcs.
Check the Simplfied Field Notation radio button, click Edit and enter for example Text1-Text2 ( substitute with your actual field names).
For more on calculations in Acrobat you may want to take a look at this article on the JavaScript Corner-
[url=http://www.acrobatusers.com/tech_corners/javascript_corner/tips/2006/form_calculations/]http://www.acrobatusers.com/tech_corners/javascript_corner/tips/2006/form_calculations/[/url]
Hope that helps,
Dimitri Munkirs
WindJack Solutions
[url=http://www.windjack.com]www.windjack.com[/url]
Dimitri Munkirs
WindJack Solutions
pdfscripting.com