Looking at the Form Fields
We start the process by going to the Forms pane in the Acrobat Tools pane and selecting the Edit button (Figure 3); this puts us into Acrobat’s Form Editor. You’ll notice the document window’s toolbar changes and, more obviously, all form fields are displayed as rectangles, each containing the field’s name (Figure 4). (Remember that each form field must have a name for internal use; this name isn’t usually visible on the page when the form is in use.)
Figure 3 We click the Forms panel’s Edit button to enter Acrobat’s Form Editor.
Figure 4 In the Form Editor, all form fields appear as rectangles containing the field names.
Let’s look in detail at the three “Wake-ups” fields in our form (Figure 5). These fields have the following names and purposes:
Figure 5 In this article, we’ll concentrate on the three “Wake-ups” fields.
- Wakeups Count collects the number of wake-up calls that were made during the month. This needs to be entered by hand.
- Wakeups Rate is the charge for each wake-up call.
- Wakeups Charge is the total charge for this month’s standard wake-ups.
It is the last of theseWakeups Chargethat we’ll turn into a calculated field. The total monthly charge will be the number of calls times the charge per call; the value of the Wakeups Charge field should therefore be the value of the Wakeups Count field multiplied by the value of the Wakeups Rate field. Expressed as an equation (I love equations, don’t you?), that would be
- Wakeups Charge = Wakeups CountxWakeups Rate
Well, the math is simple. So’s setting up the form, as we’ll see.