I am trying to fill the empty fields of pdf file, but I am facing 2 issues with the code, i.e.,

1. It is replacing the field values even which are not empty (i.e. it needs to fill ‘NA’ for only empty fields)
2. The ‘NA’ for empty fields is working only in the first page for remaining pages it’s not working

I tried the below code –

`import pdfrw

def fill_pdf_with_na(input_path, output_path):
template_pdf = pdfrw.PdfReader(input_path)

for page_num in range(len(template_pdf.pages)):
    annotations = template_pdf.pages[page_num]['/Annots']
    if annotations is None:
        continue
    for annotation in annotations:
        if annotation['/Subtype'] == '/Widget':
            if annotation['/FT'] == '/Tx':  # Text field
                if '/V' not in annotation:
                    annotation.update(pdfrw.PdfDict(V="NA"))
            elif annotation['/FT'] == '/Btn':  # Button (checkbox)
                if '/V' not in annotation:
                    annotation.update(pdfrw.PdfDict(V=pdfrw.PdfName('Yes')))

# Write the modified PDF to the output file
writer = pdfrw.PdfWriter()
writer.write(output_path, template_pdf)`

input_pdf_path = r”C:fillpdfinput.pdf”
output_pdf_path = r”C:fillpdfoutput.pdf”

fill_pdf_with_na(input_pdf_path, output_pdf_path)

print(f”Filled PDF saved to {output_pdf_path}”)

pls help me to solve my 2 issues