flutter_native_html_to_pdf

Major Changes

• Migrated to Native WebView Rendering: The package now uses native platform WebView (Android WebView / iOS WKWebView) for HTML rendering and PDF generation
• Architecture Change: Reverted from pure Dart implementation (v2.x) back to native code for improved rendering quality and CSS support
• Removed Dependencies: No longer depends on pdf and html packages
• Enhanced Platform Support: Better leverages native capabilities for more accurate HTML-to-PDF conversion

Implementation Details

• Added native Android implementation using Android WebView
• Added native iOS implementation using WKWebView
• Updated HtmlToPdfConverter to use platform channels for native PDF generation
• Removed custom HTML parser (html_parser.dart) in favor of native WebView rendering

Tests

• Updated unit tests to mock native method calls
• Maintained test coverage for PDF generation functionality

Migration Notes

Version 3.0.0 returns to using native platform code, which provides better rendering quality and CSS support compared to the pure Dart implementation in v2.x. The API remains largely the same, but the underlying implementation now requires Android and iOS platforms.

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• Fixed incorrect percentage value parsing in _parseDimension method
• Percentage values (e.g., width: 70%, border-radius: 50%) were being converted to incorrect fixed pixel values
• Now returns null for percentage values since they require layout context that's not available at parse time
• Prevents incorrect rendering of elements with percentage-based styling

• Add support for border-radius, width, height, and min-height CSS properties

Bug Fix (2.0.2 Patch):

Bug Fixes

• Fixed PDF rendering width: Block-level elements (<div> and <p>) with background colors or borders now span the full page width in generated PDFs, matching browser behavior
  • Previously, elements with background-color CSS property only wrapped their content width
  • Now containers expand to full available width when background colors or borders are present
  • Fixes issue where yellow highlighted sections and bordered elements appeared narrow in PDFs

Tests

• Added comprehensive test coverage for full-width background and border rendering

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Major Changes

• Migrated to Pure Dart: The package no longer uses native code (iOS, Android, etc.) and is now 100% Dart
• New Main Class: Use HtmlToPdfConverter instead of FlutterNativeHtmlToPdf
• No Flutter Dependency: Package can now be used in pure Dart applications
• Cross-platform: Now supports all platforms including macOS and web

New Features

• Added PdfPageSize.fromMillimeters() factory for creating page sizes from millimeter values
• Added PdfPageSize.fromInches() factory for creating page sizes from inch values
• Added PdfPageSize.landscape and PdfPageSize.portrait getters for orientation conversion
• Added PdfPageSize.b5 and PdfPageSize.executive predefined page sizes
• Return types are now non-nullable (File and Uint8List instead of File? and Uint8List?)

Migration Guide

// Old (v1.x)
final plugin = FlutterNativeHtmlToPdf();
final pdfFile = await plugin.convertHtmlToPdf(...);

// New (v2.x)
final converter = HtmlToPdfConverter();
final pdfFile = await converter.convertHtmlToPdf(...);

Deprecated

• FlutterNativeHtmlToPdf class is deprecated. Use HtmlToPdfConverter instead.

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• Refactor iOS code to support scene-based root view controller retrieval and update Info.plist for scene configuration
• Enhance PDF sharing functionality with improved metadata and file handling