Optimize page: content/english/java/advanced-comparison/java-groupdocs-comparison-multi-stream-document-guide/_index.md - - Updated title, description, and keywords to embed primary and secondary keywords.

- Added primary keyword “how to use groupdocs” in title, first paragraph, and an H2 heading.
- Integrated secondary keywords “document comparison best practices” and “compare multiple documents java” throughout headings and body.
- Inserted Quick Answers section after introduction for AI-friendly snippets.
- Added detailed FAQ section near the end with concise Q&A.
- Included trust signals (last updated, tested version, author) at the bottom.
- Expanded explanations, use‑case contexts, and best‑practice recommendations while preserving all original code blocks, links, and structure.

Author: muqarrab-aspose