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# Description of Changes - **What was changed:** Added a new `maxDPI` property under `system` in `ApplicationProperties`; updated `PdfUtils` to retrieve and enforce this configurable limit instead of a hard-coded constant; modified `ConverterWebController` and the PDF-to-image template to expose the limit to users; added `pdfToImage.dpi` entries across all translation files; updated `settings.yml.template` and `DeveloperGuide.md` to document the new setting. - **Why the change was made:** To allow deployments to tune the maximum DPI for PDF-to-image conversions based on available resources, preventing excessive memory usage and crashes caused by arbitrarily high DPI values. Closes #3985 --- ## Checklist ### General - [x] I have read the [Contribution Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md) - [x] I have read the [Stirling-PDF Developer Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md) (if applicable) - [ ] I have read the [How to add new languages to Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md) (if applicable) - [x] I have performed a self-review of my own code - [x] My changes generate no new warnings ### Documentation - [ ] I have updated relevant docs on [Stirling-PDF's doc repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/) (if functionality has heavily changed) - [ ] I have read the section [Add New Translation Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags) (for new translation tags only) ### UI Changes (if applicable) - [ ] Screenshots or videos demonstrating the UI changes are attached (e.g., as comments or direct attachments in the PR) ### Testing (if applicable) - [ ] I have tested my changes locally. Refer to the [Testing Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing) for more details. --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Developer Guide Directory
This directory contains all development-related documentation for Stirling PDF.
📚 Documentation Index
Core Development
- DeveloperGuide.md - Main developer setup and architecture guide
- EXCEPTION_HANDLING_GUIDE.md - Exception handling patterns and i18n best practices
- HowToAddNewLanguage.md - Internationalization and translation guide
Features & Documentation
- AGENTS.md - Agent-based functionality documentation
- USERS.md - User-focused documentation and guides
🔗 Related Files in Root
- README.md - Project overview and quick start
- CONTRIBUTING.md - Contribution guidelines
- SECURITY.md - Security policies and reporting
- DATABASE.md - Database setup and configuration (usage guide)
- HowToUseOCR.md - OCR setup and configuration (usage guide)
📝 Contributing to Documentation
When adding new development documentation:
- Place technical guides in this
devGuide/directory - Update this index file with a brief description
- Keep user-facing docs (README, CONTRIBUTING, SECURITY) in the root
- Follow existing naming conventions (PascalCase for guides)