advance_pdf_viewer

A flutter plugin for handling PDF files. Works on both Android & iOS. Originally forked from (https://github.com/CrossPT/flutter_plugin_pdf_viewer).

Installation

Add advance_pdf_viewer as a dependency in your pubspec.yaml file.

advance_pdf_viewer: any

---

Android

No permissions required. Uses application cache directory.

iOS

No permissions required.

How-to:

Load PDF

// Load from assets
PDFDocument doc = await PDFDocument.fromAsset('assets/test.pdf');
 
// Load from URL
PDFDocument doc = await PDFDocument.fromURL('http://www.africau.edu/images/default/sample.pdf');

// Load from file
File file  = File('...');
PDFDocument doc = await PDFDocument.fromFile(file);

Load pages

// Load specific page
PDFPage pageOne = await doc.get(page: _number);

Pre-built viewer

Use the pre-built PDF Viewer

@override
  Widget build(BuildContext context) {
    Scaffold(
        appBar: AppBar(
          title: Text('Example'),
        ),
        body: Center(
        child: _isLoading
            ? Center(child: CircularProgressIndicator())
            : PDFViewer(document: document)),
    );
  }

This code produces the following view:

---

TODO

• Allow password-protected files
• Refactor PDFDocument.getAll() method
• Increase page resolution
• Add swipe to change page

---

Third-party packages used

Name	Description
path_provider	A Flutter plugin for finding commonly used locations on the filesystem. Supports iOS and Android.
flutter_cache_manager	A CacheManager to download and cache files in the cache directory of the app. Various settings on how long to keep a file can be changed.
numberpicker	NumberPicker is a custom widget designed for choosing an integer or decimal number by scrolling spinners.
flutter_advanced_networkimage	An advanced image provider provides caching and retrying for flutter app. Now with zoomable widget and transition to image widget.