Thanks but this is a cloud-based solution. I need something that isn't online for this particular form, it is for an internal document.

Thanks. Do you have a link to where I can find out more information about this?

I make XFA forms and usually just add reader extensions through Acrobat but now have a form from which I will need to extract data from more than 500 users so can't do it this way. Can I just purchase the Reader Extension module to allow me the license to do this and if so what is the workflow for t...

you could do it as table rather than seperate text boxes. That way each column would keep its position.

Under Object > Binding for the checkbox you can set the "On Value" and "Off Value". They are automatically 1 and 0 but you can make them whatever you want.

you can see from the error message that your subform is called page5506 with a small 'p' but you have used a 'P' in the code

because it is doing a division by 0 which is invalid. Just put in an if statement that only does the calculation is the field is not null.

Under Object > Binding for the row you want to repeat you have to make sure you have 'Repeat Row for Each Data Item' checked

it looks like you have written 'Page5506' with a capital 'p'. It is case sensitive so try putting it back to a lowercase letter.

in the "change" event of each checkbox put something like (in Formcalc):if ($ == 1) thenvalue = value + 0.5else value = value - 0.5endif- where 'value' is the name of the field you want the value to show up