Adobe Javascript Radio Buttons Coordinates

Forum|Forum|4 years ago
May 31, 2021
1 reply
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Hi there. I'm trying to rename a radio button using JS by creating a new radiobutton field. There are 3 options layed out:

[ ] Option 1

[ ] Option 2

[ ] Option 3

I'm trying to get the coords for each option using f.rect; but it returns the same coords regardless of which option I have checked. Is there a way to do this?

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Correct answer Thom Parker

When fields have the same name, they are essentially the same field. In a PDF, a field is really a virtual thing. It's a name with an associated value. What the user sees on the screen is called a Widget. So your radio button group is 1 field with 3 widgets. By default, this.getField("FieldName") returns the 1st widget. To get the coordinates of the other widgets the widget ID is appended to the FieldName.

So this.getField("FieldName.0") gets the first widget and this.getField("FieldName.1") gets the second widget, etc.

Thom Parker

Correct answer

Community Expert

When fields have the same name, they are essentially the same field. In a PDF, a field is really a virtual thing. It's a name with an associated value. What the user sees on the screen is called a Widget. So your radio button group is 1 field with 3 widgets. By default, this.getField("FieldName") returns the 1st widget. To get the coordinates of the other widgets the widget ID is appended to the FieldName.

So this.getField("FieldName.0") gets the first widget and this.getField("FieldName.1") gets the second widget, etc.

Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often