@kyle-leitham-aix do you know if there is any progress on this? I'm also running into this issue and marking the fields read-only isn't really an option since they're still editable. Any further info?

@mel-habip It seems like this repo has been abandoned, unfortunately. As a workaround, I had to programmatically remove all of the page annotations before flattening.

@mel-habip It seems like this repo has been abandoned, unfortunately. As a workaround, I had to programmatically remove all of the page annotations before flattening.

Could you provide an example of how to do this? We tried this but didn't quite work out for us.

@mpalmahsf So, if you have the pdf document instance, it would be something like:

pdfDocument.getPages().forEach((page) => {
      const annotations = page.node.Annots()
      const size = annotations?.size()
      if (size) {
        for (let i = 0; i < size; i++) {
          annotations.remove(annotations.get(i))
        }
      }
    })

There is an issue with this approach.
After this fix adobe no more throw any error but all fields & texts are missing from the pdf(Just an empty PDF page).

@mpalmahsf So, if you have the pdf document instance, it would be something like:

pdfDocument.getPages().forEach((page) => {
      const annotations = page.node.Annots()
      const size = annotations?.size()
      if (size) {
        for (let i = 0; i < size; i++) {
          annotations.remove(annotations.get(i))
        }
      }
    })

I tried this approach and worked but I applied that AFTER flattening the form. In that way the fields and texts appear well.