thai_pdf_fixer #

Unicode-first Thai text rendering for PDFs generated with Flutter's pdf package.

This package is a thin language-focused facade over pdf_text_shaper. HarfBuzz performs real OpenType shaping while this package adds convenient font loading, script detection and PDF widgets.

Features #

• HarfBuzz GSUB/GPOS shaping through pdf_text_shaper
• Unicode-first Thai text
• fallback fonts for mixed-script documents
• multiline wrapping and reusable typography
• optional invisible Unicode layer for search/copy
• ThaiText, ThaiParagraph, ThaiHeader
• ThaiRichText, ThaiBulletList, ThaiTable
• ThaiFontManager with safe asset caching/retry
• no bundled fonts

Install #

dependencies:
  thai_pdf_fixer: ^1.0.0

Add a Unicode OpenType font that supports the Thai script. For example, a suitable Noto font such as NotoSansThai-Regular.ttf.

Basic usage #

final font = await ThaiFontManager.instance.loadAsset(
  'assets/fonts/NotoSansThai-Regular.ttf',
);

ThaiParagraph(
  'ภาษาไทย: ฉันกำลังเขียนภาษาไทยอยู่',
  font: font,
  fontSize: 14,
)

Typography #

final typography = ThaiTypography(
  regularFont: regular,
  boldFont: bold,
  fallbackFonts: [latinRegular],
  boldFallbackFonts: [latinBold],
);

ThaiHeader(
  'Thai document',
  style: typography.heading(fontSize: 24),
)

Detection #

'ภาษาไทย: ฉันกำลังเขียนภาษาไทยอยู่'.containsThai; // true

Font lifecycle #

await ThaiFontManager.instance.dispose();

The package intentionally does not bundle fonts. Verify the license of any font you ship with your application.

Platforms #

Android, iOS, Linux, macOS and Windows. Web is not currently supported by the native shaping backend.

Repository #

This package is maintained in the central pdf_text_shaper repository:

• Repository: https://github.com/ardevcraft/pdf_text_shaper
• Issues: https://github.com/ardevcraft/pdf_text_shaper/issues
• Documentation: https://github.com/ardevcraft/pdf_text_shaper#readme