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# Description of Changes This pull request introduces several improvements to enhance error handling, internationalization, and documentation in the codebase. The key changes include the addition of `ExceptionUtils` and `I18nUtils` utility classes for consistent exception handling and internationalized messages, updates to documentation paths, and modifications to existing methods to integrate the new utilities. ### Error Handling Enhancements: * **Added `ExceptionUtils` utility class**: Provides standardized methods for creating and handling exceptions with internationalized error messages, including specific handling for PDF corruption, encryption issues, and other file-related errors. * **Integrated `ExceptionUtils` into `CustomPDFDocumentFactory`**: Updated `loadFromFile` and `loadFromBytes` methods to log and handle exceptions using `ExceptionUtils`, ensuring consistent error handling across PDF operations. [[1]](diffhunk://#diff-10208c1fc2e04631a8cf2a2a99b2a1160e532e75a7b840ad752f3b0130b89851R358-R363) [[2]](diffhunk://#diff-10208c1fc2e04631a8cf2a2a99b2a1160e532e75a7b840ad752f3b0130b89851R375-R381) * **Updated `FileToPdf` to use `ExceptionUtils`**: Replaced direct exception throwing with `ExceptionUtils.createHtmlFileRequiredException` for unsupported file formats. ### Internationalization Improvements: * **Added `I18nUtils` utility class**: Centralized access to Spring's `MessageSource` for retrieving localized messages, enabling consistent internationalization across the application. ### Documentation Updates: * **Updated documentation paths in `CONTRIBUTING.md` and `README.md`**: Changed paths to reference the new `devGuide` folder for developer documentation and translation guides. [[1]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L28-R28) [[2]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L40-R51) [[3]](diffhunk://#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5L171-L174) --- ## Checklist ### General - [ ] I have read the [Contribution Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md) - [ ] I have read the [Stirling-PDF Developer Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/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/HowToAddNewLanguage.md) (if applicable) - [ ] I have performed a self-review of my own code - [ ] 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/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/DeveloperGuide.md#6-testing) for more details. --------- Co-authored-by: a <a>
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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)