v1.0.0 of dart_pdf_editor

Flutter PDF viewer and editor rendered natively in Dart — zooming viewer, text selection and search, annotation authoring, form filling, signatures, and page management. No platform plugins. Changelog excerpt: First stable release. Highlights since 0.1.0: - Redaction tool: mark regions and burn the content irreversibly. - Document comparison: pixel + text diff with a synchronized compare view. - Text reflow: a paragraph-aware reading view of extracted text. - More annotation tools: line/polyline/polygon with the full line-ending picker, an insert-image tool, customizable dash line styles, and polygon fills. - Text boxes: bold/italic across the standard fonts, with font, outline, and fill controls in [...]