A Flutter Plugin For Handling PDF Files
flutter_plugin_pdf_viewer
A flutter plugin for handling PDF files. Works on both Android & iOS. Using flutter_plugin_pdf_viewer you can display downloaded pdf in you flutter app.
Installation
Add flutter_plugin_pdf_viewer as a dependency in your pubspec.yaml file.
flutter_plugin_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() methodIncrease 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. |
GitHub
Source Code: flutter_plugin_pdf_viewer.
