Optimize page: content/english/java/advanced-comparison/groupdocs-compare-protected-word-documents-java/_index.md - - Updated title, meta description, and front‑matter date to include primary keyword “how to compare word”.

- Added Quick Answers and FAQ sections for AI‑friendly summarization.
- Inserted new “Batch Compare Word Files in Java” heading to incorporate secondary keyword.
- Expanded introductions, explanations, and real‑world use cases for better human engagement.
- Added trust‑signal block with last updated date, tested version, and author.

Author: muqarrab-aspose