How can I generate a unique sequential number on a PDF form field? I want the sequence to be locked once form is saved (Save as) and generate a new sequence when a new form is opened. I also have a reset form button to clear all fields on the form and wou

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How can I generate a unique sequential number on a PDF form field? I want the sequence to be locked once form is saved (Save as) and generate a new sequence when a new form is opened. I also have a reset form button to clear all fields on the form and wouldnt want to affect the sequence field unless it is saved.