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I have used pdftk to fill the data to the form in an existing PDF template. That part has no problem. However, originally, people can enter the text in the PDF form, but now, after running pdftk and fill in the data, I am no longer able to type anything in the pdf.
I tried “pdftk my_application.pdf fill_form ‘. $fdf_fn. ‘ output – flatten allow modifycontents” or even allow allfeatures
but still does’t work.
anyone has idea how it works?