DocumentGenerator - Bulk Document Generation

Jun 1, 2025 · 1 min read

DocumentGenerator is a bulk document generation system that uses Word templates and Excel spreadsheet data to produce large volumes of standardized documents with concurrent processing.

Key Features

  • Bulk Generation: Creation of hundreds of documents from a single template and XLSX data
  • Concurrent Processing: ThreadPoolExecutor for parallel generation
  • Flexible Templates: python-docx-template engine with Jinja2 syntax
  • YAML Configuration: Complete parameterization without code modification
  • Structured Logging: JSON logging for every operation
  • Error Management: Robust per-document error handling

Technologies Used

  • Language: Python 3.9+
  • Templates: python-docx-template (Jinja2 for Word)
  • Data: pandas (XLSX reading)
  • Concurrency: concurrent.futures (ThreadPoolExecutor)
  • Configuration: YAML
  • Logging: Structured JSON

Impact

DocumentGenerator automates batch creation of official documents, eliminating manual production of repetitive documents and reducing transcription errors in environments that require generating large volumes of standardized communications.

This project was born from the need to generate official documents in bulk within judicial offices, where each document shares a common structure but differs in the specific data of the parties involved.