Automate PDF Declaration Form on Acrobat

[dennisv76302125]

Currently i'm creating a decleration form.

On top of the form is a Checkbox, this checkbox needs to be checked by the user of the form if they add a tax-number.

If the checkbox is checked, there needs to be added 21% (tax) onto the total amount and the 21% needs to be displayed.

Is this possible?

I added the document, the document is in Dutch.

[gkaiseril · Accepted solution]

Yes, one would use JavaScript. You would change the code for calculating the tax.

How to do (not so simple) form calculations

[dennisv76302125]

Thank you,

That helped!