Hi

I'm trying to populate a PDF form, but when i call update_page_form_field_values it is not updating already filled form fields, see code below.

If i though run update_page_form_field_values with flags=1 (update_page_form_field_values(writer.pages[idx], form_fields, flags=1)) then the fields gets updated, but they become read only which is not usable in my case.

any help is appreciated

Environment

$ python -m platform
Linux-6.2.12-arch1-1-x86_64-with-glibc2.37

$ python -c "import PyPDF2;print(PyPDF2.__version__)"
3.0.1

Code

from PyPDF2 import PdfWriter

dst_file = "test_output.pdf"
writer = PdfWriter()
writer.append("test.pdf")
form_fields = {"Text Box 1":"test1"}
for idx,page in enumerate(writer.pages):
     writer.update_page_form_field_values(writer.pages[idx], form_fields)
with open(dst_file, "wb") as output_stream:
     writer.write(output_stream)
writer.close()

Traceback

no traceback