native_html_to_pdf 1.0.3 
native_html_to_pdf: ^1.0.3 copied to clipboard
Convert local HTML files into high-quality PDFs using native Android and iOS engines with full control over page size, margins, orientation, and DPI.
native_html_to_pdf #
A powerful Flutter plugin to convert local HTML, CSS, and JavaScript files into high-quality PDFs. If you are looking for a fast and reliable Flutter HTML to PDF converter, this package uses native Android and iOS rendering engines for offline PDF generation. It easily handles complex layouts without relying on any third-party servers.
Features #
- Native rendering on Android and iOS
- Converts local HTML files to PDF
- Supports full HTML and CSS
- Handles complex layouts like cards, tables, and multi-page content
- Multiple paper sizes
- Portrait and landscape orientation
- Custom margins: left, top, right, bottom
- Page range selection
- DPI control for output quality
- Works offline
- Hidden WebView rendering
- Supports dynamic/generated HTML content
- Same API for Android and iOS
How it works #
- HTML file is loaded into a hidden WebView
- JavaScript notifies when rendering is complete
- Native print engine generates the PDF
- The PDF is saved locally and returned to Flutter
Supported Paper Sizes #
Use one of these exact values for printSize:
A0, A1, A2, A3, A4, A5
B0, B1, B2, B3, B4, B5
LETTER, LEGAL, TABLOID, LEDGER
INDEX_3X5, INDEX_4X6, INDEX_5X8
MONARCH, QUARTO
JIS_B4, JIS_B5
ROC_8K, ROC_16K
PRC_1, PRC_2, PRC_3, PRC_4, PRC_5
PRC_6, PRC_7, PRC_8, PRC_9, PRC_10, PRC_16K
Default: A4
Parameters #
htmlFilePath #
Path of the local HTML file.
printSize #
Paper size name. Use one of the supported values listed above.
orientation #
Use:
PORTRAITLANDSCAPE
marginLeft, marginTop, marginRight, marginBottom #
Margins in mils.
Note:
- 1000 mils = 1 inch
- 500 mils = 0.5 inch
startPage #
First page to export.
endPage #
Last page to export.
Use 0 for all pages.
dpi #
Output resolution.
Recommended values:
300for normal quality600for high quality
Usage #
import 'dart:io';
import 'package:flutter/services.dart';
import 'package:path_provider/path_provider.dart';
final MethodChannel htmlChannel = MethodChannel('html_to_pdf');
Future<void> generatePdf() async {
final tempDir = await getTemporaryDirectory();
final htmlFile = File('${tempDir.path}/demo.html');
await htmlFile.writeAsString('''
<!DOCTYPE html>
<html>
<head>
<style>
body {
background: red;
color: white;
font-family: Arial;
padding: 20px;
}
.box {
border: 2px solid white;
margin: 10px 0;
padding: 10px;
}
</style>
</head>
<body>
<h1>native_html_to_pdf Demo</h1>
<p>This PDF is generated from HTML.</p>
<div class="box">Block 1</div>
<div class="box">Block 2</div>
<div class="box">Block 3</div>
<script>
window.onload = function() {
setTimeout(function() {
if (window.AndroidBridge) {
window.AndroidBridge.notifyPdfReady();
}
}, 500);
};
</script>
</body>
</html>
''');
final String path = await htmlChannel.invokeMethod('convertHtmlToPdf', {
'htmlFilePath': htmlFile.path,
'printSize': 'A4',
'orientation': 'PORTRAIT',
'marginLeft': 0,
'marginTop': 0,
'marginRight': 0,
'marginBottom': 0,
'startPage': 1,
'endPage': 0,
'dpi': 600,
});
print('PDF saved at: $path');
}
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Publisher
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Weekly Downloads
Metadata
Convert local HTML files into high-quality PDFs using native Android and iOS engines with full control over page size, margins, orientation, and DPI.
Repository (GitHub)
View/report issues
Topics
#pdf #html #native #printing #ios
License
MIT (license)
Dependencies
flutter, plugin_platform_interface
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