Simple Calculate Formulas

[jackj1747930]

Is there a simple way to create the following calcualtion in an interactive pdf -

(Text Field A) + (Text Field B) - (Text Field C) = (Text Field D)

Thanks

Jack

[try67]

See: https://acrobatusers.com/tutorials/how-to-do-not-so-simple-form-calculations

[jackj1747930]

Thanks for the link. I've just discovered that the calculation does work but only if there are no spaces in the 'TextFieldD' name. See... and I can spell 'calculation' properly too! : )

[Thom Parker]

You might also be interested in this article, which covers writing simple JavaScript calculations:

https://www.pdfscripting.com/public/How-to-Write-a-Basic-PDF-Calculation-Script.cfm

[JR Boulay · Accepted solution]

"I've just discovered that the calculation does work but only if there are no spaces in the 'TextFieldD' name."

Blank spaces and dots must be escaped using a backslash, like this:

Text\ Field\ A + Text\ Field\ B - Text\ Field\ C = Text\ Field\ D