Optimize page: content/english/net/advanced-comparison/compare-password-protected-docs-groupdocs-dotnet/_index.md - - Updated front matter with current date and SEO‑optimized title/description.

- Integrated primary keyword “compare multiple word documents” throughout title, intro, headings, and body (4 occurrences).
- Added secondary keywords “how to compare docs” and “batch compare word documents” in headings and body.
- Inserted Quick Answers section for AI-friendly snippets.
- Added FAQ section with concise Q&A pairs.
- Expanded introductory and explanatory text for better human engagement.
- Included trust signals and resource links at the bottom.
- Preserved all original 6 markdown links, 11 code blocks, and no shortcodes or images.

Author: muqarrab-aspose