docs: Add PDF 1.7 and PDF 2.0 specifications to wiki (152 pages) - Add complete PDF 1.7 specification (ISO 32000-1:2008) - 69 pages - Split by chapter and section for easy navigation - Added glossary with cross-references - Chapters 7-14 split into subsections - Add complete PDF 2.0 specification (ISO 32000-2:2020) - 83 pages - Downloaded from Internet Archive (sponsored by PDF Association) - Split by chapter and section - Added glossary with cross-references - Includes errata from Amendment 1 - Add new project documentation pages: - GUI-Application.md - Desktop GUI features, layout, workflow - PDF-Libraries.md - PdfPig, PDFsharp, PDFtoImage usage - Update Home.md with improved navigation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>