Refactor and improve xref stream writing

digitorus / pdfsign

Add/verify Advanced Electronic Signature (AES) and Qualified Electronic Signature (QES) in PDF (usign pure Go)

BSD 2-Clause "Simplified" License

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Refactor and improve xref stream writing #39

Closed vanbroup closed 3 months ago

vanbroup commented 3 months ago

Split writeXrefStream into smaller, focused functions
Improve error handling and messages in xref related functions
Enhance code readability and maintainability
Use io.WriteString for more efficient string writing

This refactoring aims to make the xref stream writing process more modular, easier to understand, and slightly more efficient, while maintaining the existing functionality.