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I have a pdf that has a field with javascript that concatenates two other fields into it. When using pdf-lib and using setText for the two other fields, the field with javascript doesn't get triggered to update itself. How do I do that programmatically?

Additionally, I have a barcode that needs to be triggered to load from the values that I have loaded on my form. I am assuming that I would be able to trigger that event in the same manner.

Any help would be greatly appreciated.

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  • Ok, so there is no way to trigger those calculated fields and I will need to calculate them in my code and just set them. That is what you are saying, correct? Commented Sep 21, 2023 at 4:52
  • Is there a library that can be used in this particular fashion? Maybe pdf-lib is not the correct one for me to be using? Commented Sep 21, 2023 at 5:14
  • I understand what you are saying, but the example of Add A + B and show as C is a very simplistic example. Consider this, you add a BarCode to your pdf, and it is a combination of 100+ fields. Within Adobe, the custom javascript allows you to put all of this together and the barcode is generated from the value list when you set the field with event.value = combination of all fields plus the EOD tag. Filling in the pdf fillable fields, and then triggering the javascript allows you to not have to generate the barcode and then add the generated image since it is self-contained. Commented Sep 21, 2023 at 12:54
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