Modifying SAP delivered adobe forms

Hi group,

I need to look into modifying our W2 pdf to include text changes to Box 12DD . I have to add a condition by reading certain wage types. To this end, I would be copying the original W2 form to a Z version. Since I am new to adobe forms, I am finding it difficult to add an abap code to make this changes (unlike sapscripts). I read that either formcalc or javascript can be used to make any such changes to the form. Is this correct?

Thanks,

María