Import JSON Data

JSON is widely used for storing and transferring structured data between systems. In this example, the Form facade from the aspose.pdf.facades module is used to bind a PDF form and import field values from an external JSON file. After the import process, the updated document is saved as a new PDF.

1. Initialize pdf_facades.Form() to interact with PDF form fields.
2. Call ‘bind_pdf()’ to attach the PDF form template.
3. Use ‘FileIO()’ to read the JSON file containing form values.
4. Call ‘import_json()’ to populate PDF fields using JSON key–value pairs.
5. Save the updated PDF.

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


# Import from JSON
def import_json_to_pdf_form(infile, datafile, outfile):
    """Import form data from JSON file into PDF form fields."""
    # Create Form object
    form = pdf_facades.Form()

    # Bind PDF document
    form.bind_pdf(infile)

    # Open JSON file as stream
    with FileIO(datafile, "r") as json_stream:
        # Import data from JSON into PDF form fields
        form.import_json(json_stream)

    # Save updated PDF
    form.save(outfile)