dd590bd22c
Add Python script to automatically fill PDF forms with AcroForm fields: - extract_fields(): Extract all form field names and types from PDF - fill_pdf(): Fill PDF with values from JSON input - Support for both list and dict JSON formats - Checkbox values support (/On, /Off, /Ja, /Nein) https://claude.ai/code/session_01Dq1f9hjJFq859ShW2kZ26R
95 lines
2.4 KiB
Python
95 lines
2.4 KiB
Python
#!/usr/bin/env python3
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"""
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PDF Form Filler - Automatisches Ausfüllen von PDF-Formularen mit AcroForm-Feldern.
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Usage:
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python fill_pdf.py <input.pdf> <values.json> <output.pdf>
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python fill_pdf.py --extract <input.pdf> # Extrahiert Feldnamen
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"""
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from pypdf import PdfReader, PdfWriter
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import json
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import sys
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def extract_fields(pdf_path: str) -> list[dict]:
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"""Extrahiert alle Formularfelder aus einer PDF."""
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reader = PdfReader(pdf_path)
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fields = reader.get_fields()
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if not fields:
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return []
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result = []
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for field_name, field_data in fields.items():
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field_type = field_data.get('/FT', '')
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field_info = {
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"field_id": field_name,
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"type": str(field_type),
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"value": field_data.get('/V', '')
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}
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result.append(field_info)
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return result
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def fill_pdf(input_pdf: str, field_values: dict, output_pdf: str):
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"""
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Befüllt eine PDF mit den angegebenen Feldwerten.
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field_values Format:
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{
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"txtName": "Max Mustermann",
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"txtDatum": "28.01.2025",
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"chkOption": "/Ja" # Checkboxen: /On, /Off, /Ja, /Nein
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}
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"""
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reader = PdfReader(input_pdf)
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writer = PdfWriter()
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writer.append(reader)
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# Felder auf allen Seiten befüllen
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for page_num in range(len(writer.pages)):
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writer.update_page_form_field_values(
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writer.pages[page_num],
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field_values
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)
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with open(output_pdf, "wb") as output:
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writer.write(output)
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def main():
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# Extraktionsmodus
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if len(sys.argv) == 3 and sys.argv[1] == "--extract":
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pdf_path = sys.argv[2]
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fields = extract_fields(pdf_path)
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print(json.dumps(fields, indent=2, ensure_ascii=False))
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return
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# Normaler Füllmodus
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if len(sys.argv) != 4:
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print("Usage: python fill_pdf.py <input.pdf> <values.json> <output.pdf>")
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print(" python fill_pdf.py --extract <input.pdf>")
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sys.exit(1)
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input_pdf = sys.argv[1]
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values_json = sys.argv[2]
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output_pdf = sys.argv[3]
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# JSON laden
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with open(values_json, 'r', encoding='utf-8') as f:
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data = json.load(f)
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# Wenn Liste: in Dict umwandeln
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if isinstance(data, list):
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field_values = {item['field_id']: item['value'] for item in data}
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else:
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field_values = data
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fill_pdf(input_pdf, field_values, output_pdf)
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print(f"PDF erfolgreich erstellt: {output_pdf}")
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if __name__ == "__main__":
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main()
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