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Laravel PDF with Khmer Font Support using mPDF.

Laravel Khmer PDF

Laravel Khmer PDF is a package designed to simplify PDF generation in Laravel with built-in support for Khmer fonts. It integrates seamlessly with mPDF to create professional-looking PDFs.

Installation

Install the package via Composer:

composer require khmer-pdf/laravel-kh-pdf

Publish the configuration file:

php artisan vendor:publish --tag=khPdf

This will create a config/khPdf.php file where you can customize font settings and mPDF configurations.

Usage

Basic PDF Generation

Use the PdfKh facade to generate PDFs:

use KhmerPdf\LaravelKhPdf\Facades\PdfKh;

class PdfController extends Controller
{
    public function generatePdf()
    {
        $html = view('pdf.template', ['title' => 'សួស្តី ពិភពលោក!'])->render();
        return PdfKh::loadHtml($html)->download('khmer_document.pdf');
    }
}

Methods

The trait provides the following methods:

Method	Description	Example
`loadHtml($html)`	Sets the HTML content for the PDF.	`PdfKh::loadHtml(view('pdf.template')->render());`
`download($filename)`	Prompts the browser to download the generated PDF.	`PdfKh::download('file.pdf');`
`stream($filename)`	Displays the PDF directly in the browser.	`PdfKh::stream('file.pdf');`
`save($path, $disk)`	Saves the PDF to the specified storage disk.	`PdfKh::save('pdfs/report.pdf', 'public');`
`addMPdfConfig($config)`	Adds custom mPDF configuration settings.	`PdfKh::addMPdfConfig(['mode' => 'utf-8', 'format' => 'A4-L']);`
`watermarkText($text, $opacity, $font, $size, $angle, $color, $config)`	Adds a text watermark to the PDF.	`PdfKh::watermarkText('Confidential', 0.2, 'khmeros', 100, 45, '#FF0000', []);`
`watermarkImage($path, $size, $position, $opacity, $behindContent, $config)`	Adds an image watermark to the PDF.	`PdfKh::watermarkImage('path/to/image.png', 'p', 'p', 1, false, []);`
`writeBarcode($code, $horizontal, $vertical, $showIsbn, $size, $border)`	Writes a barcode in the PDF.	`PdfKh::writeBarcode('123456789', 10, 10, true, 1, true);`

Examples

template.blade.php

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        p{
            font-size: 25px;
            /* font-family: 'battambang';
            font-weight: bold; */

            font-family: 'khmermuol';
        }
    </style>
</head>
<body>
    <p>សួស្តី ពិភពលោក ! Hello World</p>
</body>
</html>

Adding custom mPDF Config

You can configure mPDF settings using the addMPdfConfig method:

public function generateCustomPdf()
{
    $html = view('pdf.template', ['title' => 'Custom PDF'])->render();
    PdfKh::loadHtml($html)->addMPdfConfig([
        'mode' => 'utf-8',
        'format' => 'A4-L',
        'margin_top' => 10,
        'margin_bottom' => 10
    ])->download('custom_config.pdf');
}

Saving a PDF

public function savePdf()
{
    $html = view('pdf.template', ['title' => 'Report'])->render();
    $path = PdfKh::loadHtml($html)->save('pdfs/report.pdf', 'public');
    return response()->json(['pdf_url' => asset('storage/' . $path)]);
}

Streaming a PDF

public function streamPdf()
{
    $html = view('pdf.template', ['title' => 'Live Preview'])->render();
    return PdfKh::loadHtml($html)->stream('live_preview.pdf');
}

Adding a Text Watermark

public function watermarkPdf()
{
    $html = view('pdf.template', ['title' => 'Secret Document'])->render();
    return PdfKh::loadHtml($html)->watermarkText('Confidential', 0.2, 'khmeros', 100, 45, '#FF0000')->download('watermarked.pdf');
}

Adding an Image Watermark

public function watermarkImagePdf()
{
    $html = view('pdf.template', ['title' => 'Image Watermark'])->render();
    return PdfKh::loadHtml($html)->watermarkImage('path/to/image.png', 'p', 'p', 1, false)->download('image_watermarked.pdf');
}

Adding a Barcode

public function barcodePdf()
{
    $html = view('pdf.template', ['title' => 'Barcode PDF'])->render();
    return PdfKh::loadHtml($html)->writeBarcode('123456789', 10, 10, true, 1, true)->download('barcode.pdf');
}

Configuration

The khPdf.php config file allows you to adjust font paths, default styles, and mPDF options.

Example:

'pdf' => [
    'default_font' => 'battambang', // Set your default font here

    // Path to the font files in your public directory
    'font_path' => public_path('fonts/'),

    'font_data' => [
        'battambang' => [ // lowercase letters only in font key
            'R' => 'KhmerOSbattambang.ttf',
            'B' => 'KhmerOSBattambang-Bold.ttf',
            'useOTL' => 0xFF,
        ],
        'khmermuol' => [ // lowercase letters only in font key
            'R' => 'KhmerOSmuol.ttf',
            'useOTL' => 0xFF,
        ],
    ],
],

License

This package is open-source software licensed under the MIT license.

Contributions

Contributions are welcome! Feel free to submit pull requests or issues on the GitHub repository.

khmer-pdf/laravel-kh-pdf

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