pdfrx_coregraphics #

CoreGraphics-backed renderer for pdfrx on iOS and macOS.

⚠️ EXPERIMENTAL: This package is in very early experimental stage. APIs and functionality may change significantly.

This plugin provides a PdfrxEntryFunctions implementation that uses PDFKit/CoreGraphics instead of the bundled PDFium runtime. It is intended for teams that prefer the system PDF stack on Apple platforms while keeping the pdfrx widget API.

Installation #

Add the package to your Flutter app:

dependencies:
  pdfrx: any
  pdfrx_coregraphics: ^0.1.1

Set the CoreGraphics entry functions before initializing pdfrx:

import 'package:flutter/material.dart';
import 'package:pdfrx/pdfrx.dart';
import 'package:pdfrx_coregraphics/pdfrx_coregraphics.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  PdfrxEntryFunctions.instance = PdfrxCoreGraphicsEntryFunctions();
  pdfrxFlutterInitialize();
  runApp(const MyApp());
}

After installation, use pdfrx as usual. All PdfDocument and widget APIs continue to work, but rendering is routed through CoreGraphics.

Limitations #

• Incremental/custom stream loading is converted to in-memory loading
• Custom font registration is not yet supported
• In document links are always xyz and zoom is not reliable (or omitted) in certain situations
• Text extraction does not cover certain scenarios like vertical texts or R-to-L texts so far
• If you just use CoreGraphics backend only, pdfrx can work without PDFium shared library; but it is still bundled with the apps

Contributions and issue reports are always welcome.