GroupDocs.Comparison for Python via .NET Overview Leave feedback

GroupDocs.Comparison for Python via .NET is a native Python library that compares 50+ document formats — DOCX, PDF, XLSX, PPTX, OpenDocument, AutoCAD, Visio, images, HTML, and source code — and reports the differences at paragraph, word, and character level, including style and formatting changes. It runs entirely on-premise, requires no Microsoft Office installation, and ships as a pre-built wheel on Windows, Linux, and macOS.

Typical uses include:

• Contract and policy review — surface inserted, deleted, and modified clauses between two DOCX or PDF revisions and route only the changed regions to reviewers (or to an LLM) instead of re-reading both documents.
• Editorial accept/reject workflows — classify each detected change, then re-emit the document honouring the decisions via apply_changes.
• AI-edit audit — compare the document an agent produced against the original to verify and explain every change it made. See Agents and LLM Integration for the full pipeline.
• Version-control review — diff two exports of a non-text-friendly format (PPTX, XLSX, Visio, DWG) without flattening the binary.
• Multi-source consolidation — diff one source against many targets in a single pass to spot which downstream copy drifted from the canonical version.

from groupdocs.comparison import Comparer

def compare_documents():
    """Compare two DOCX revisions and write a tracked-changes result."""
    with Comparer("./source.docx") as comparer:
        comparer.add("./target.docx")
        comparer.compare("./result.docx")

if __name__ == "__main__":
    compare_documents()

from groupdocs.comparison import Comparer
from groupdocs.comparison.options import CompareOptions, LoadOptions

def compare_with_options():
    """Compare two password-protected DOCX files with style detection
    and a summary page appended to the result."""
    load = LoadOptions()
    load.password = "1234"

    with Comparer("./protected_source.docx", load_options=load) as comparer:
        comparer.add("./protected_target.docx", load_options=load)
        options = CompareOptions()
        options.detect_style_changes = True
        options.generate_summary_page = True
        options.sensitivity_of_comparison = 75
        comparer.compare("./result.docx", options)

if __name__ == "__main__":
    compare_with_options()

1. Install the package — Installation walks through PyPI installation for Windows, Linux, and macOS.
2. Run your first comparison — Quick Start Guide compares two DOCX files in five minutes.
3. Explore the examples — Running Examples clones the runnable repository and runs every documented scenario locally.
4. Use it in depth — the Developer Guide covers loading, comparing, accepting/rejecting changes, multi-source, folder compare, summary pages, and logging.
5. Plug it into AI pipelines — Agents and LLM Integration explains the MCP server, AGENTS.md, and how to use Comparison as the change-detection step in agent workflows.