Get Required Field Names

PDF forms may contain mandatory fields that users must complete before submission. These fields are typically marked as required in the form’s properties.

1. Create a Form Object.
2. Bind the PDF Document.
3. Access all field names using ‘pdf_form.field_names’.

from io import FileIO
import sys
from os import path
import aspose.pdf as ap
import aspose.pdf.facades as pdf_facades

sys.path.append(path.join(path.dirname(__file__), ".."))

from config import set_license, initialize_data_dir


# Get required field names
def get_required_field_names(infile):
    """Get required field names from a PDF document."""
    # Create Form object
    pdf_form = pdf_facades.Form()

    # Bind PDF document
    pdf_form.bind_pdf(infile)

    # Get required field names
    for field in pdf_form.field_names:
        if pdf_form.is_required_field(field):
            print(f"Required field: {field}")