PDFx
Flutter
Render & show PDF documents on Web, MacOs 10.11+, Android 5.0+, iOS and Windows.
Showcase
Live | Screenshot |
---|---|
Getting Started
In your flutter project add the dependency:
flutter pub add pdfx
For web run tool for automatically add pdfjs library in index.html:
flutter pub run pdfx:install_web
For windows run tool automatically add override for pdfium version property in CMakeLists.txt file:
flutter pub run pdfx:install_windows
Usage example
import 'package:pdfx/pdfx.dart';
final pdfController = PdfController(
document: PdfDocument.openAsset('assets/sample.pdf'),
);
Widget pdfView() => PdfViewPinch(
controller: pdfController,
);
Api
PdfDocument
Parameter | Description | Default |
---|---|---|
sourceName | Needed for toString method. Contains a method for opening a document (file, data or asset) | - |
id | Document unique id. Generated when opening document. | - |
pagesCount | All pages count in document. Starts from 1. | - |
isClosed | Is the document closed | - |
Local document open:
// From assets (Android, Ios, MacOs, Web)
PdfDocument.openAsset('assets/sample.pdf')
// From file (Android, Ios, MacOs)
PdfDocument.openFile('path/to/file/on/device')
// From data (Android, Ios, MacOs, Web)
PdfDocument.openData((FutureOr<Uint8List>) data)
Network document open:
Install [network_file
](https://pub.dev/packages/internet_file) package (supports all platforms):
flutter pub add internet_file
And use it
import 'package:internet_file/internet_file.dart';
PdfDocument.openData(InternetFile.get('https://github.com/rbcprolabs/packages.flutter/raw/fd0c92ac83ee355255acb306251b1adfeb2f2fd6/packages/native_pdf_renderer/example/assets/sample.pdf'))
Open page:
final page = document.getPage(pageNumber); // Starts from 1
Close document:
document.close();
PdfPage
Parameter | Description | Default |
---|---|---|
document | Parent document | Parent |
id | Page unique id. Needed for rendering and closing page. Generated when opening page. | - |
width | Page source width in pixels, int | - |
height | Page source height in pixels, int | - |
isClosed | Is the page closed | false |
Render image:
final pageImage = page.render(
// rendered image width resolution, required
width: page.width * 2,
// rendered image height resolution, required
height: page.height * 2,
// Rendered image compression format, also can be PNG, WEBP*
// Optional, default: PdfPageImageFormat.PNG
// Web not supported
format: PdfPageImageFormat.JPEG,
// Image background fill color for JPEG
// Optional, default '#ffffff'
// Web not supported
backgroundColor: '#ffffff',
// Crop rect in image for render
// Optional, default null
// Web not supported
cropRect: Rect.fromLTRB(left, top, right, bottom),
);
PdfPageImage
Parameter | Description | Default |
---|---|---|
id | Page unique id. Needed for rendering and closing page. Generated when render page. | - |
pageNumber | Page number. The first page is 1. | - |
width | Width of the rendered area in pixels, int | - |
height | Height of the rendered area in pixels, int | - |
bytes | Rendered image result, Uint8List | - |
format | Rendered image compression format, for web always PNG | PdfPageImageFormat.PNG |
Close page:
Before open new page android asks to close the past.
If this is not done, the application may crash with an error
page.close();
* PdfPageImageFormat.WEBP support only on android
Rendering additional info
On Web
This plugin uses the PDF.js
On Android
This plugin uses the Android native PdfRenderer
On Ios & MacOs
This plugin uses the iOS & MacOs native CGPDFPage
On Windows
This plugin uses PDFium