than_pdf_engine 1.2.0

than_pdf_engine -> dart package.wrapper cpp langage.pdfium + stb_image_write .

1.2.0

• Removed bindings.FPDF_DestroyLibrary() from PdfImageGenerator and PdfReaderWorker to prevent conflicts when using multiple isolates.

1.1.0

• Fixed PdfImageGenerator

1.0.0

Previous Architecture

The project previously used a custom C++ wrapper around PDFium:

Dart
  │
  ▼
Dart FFI
  │
  ▼
C++ Wrapper
  │
  ▼
PDFium

The C++ wrapper layer has now been removed.

Current Architecture

The current implementation communicates with PDFium directly through Dart FFI:

Dart
  │
  ▼
Dart FFI
  │
  ▼
PDFium
  │
  ▼
Rendered Bitmap
  │
  ▼
Dart Image Processing
  │
  ▼
PNG / JPEG

0.5.0

• Fixed Error PdfThumbnailGenerator -> App Force Closed.

0.4.0

Dart

• Deprecated requestPageImageJpg
• Added requestPageImage

Native C++

• Added pdf_page_renderToPngWH
• Added pdf_page_free_renderToPngWH
• Changed pdf_core_getAllPageSizes -> C++ Codes

0.3.0

• Added PdfThumbnailGenerator

• Fixed PdfCore:genThumbnailJpg - changed -> PdfThumbnailGenerator:generate
• Fixed PdfCore:genThumbnailPng - changed -> PdfThumbnailGenerator:generate
• Fixed PdfBackgroundWorker - background function error.

0.2.1

• Fixed Auto Force Close App Error -> PdfCore:genThumbnailJpg

0.1.0

• initial release.