How to convert word to pdf in php

PHP Convert Word to PDF

In our daily work, we may often encounter the need to convert Word documents to PDF. This article will introduce from a practical perspective how to use PHP to convert Word documents to PDF format.

1. Use the PHPWord library to create a Word document

First, we need to use the PHPWord library to create a Word document. PHPWord is a PHP library for creating Word documents, reading and writing Microsoft Office Word documents. It allows us to create, read and modify Microsoft Office Word documents in an easy way.

We can download the library on GitHub and deploy it to our project by following the installation guide. We can use the following code to create a simple Word document.

require_once '../PHPWord/src/PhpWord/Autoloader.php';
\PhpOffice\PhpWord\Autoloader::register();

$phpWord = new \PhpOffice\PhpWord\PhpWord();
$section = $phpWord->addSection();
$section->addText('Hello World!');

$objWriter = \PhpOffice\PhpWord\IOFactory::createWriter($phpWord, 'Word2007');
$objWriter->save('helloWorld.docx');

Through the above code, we have successfully generated a Word document "helloWorld.docx" containing "Hello World!".

2. Use unoconv to convert the Word document to PDF format

Next, we need to use unoconv to convert the Word document generated in the previous step to PDF format. Unoconv is a command-line tool for converting documents in different formats, supporting almost all file formats.

We can first install unoconv on the server and use the following code to convert Word documents to PDF format.

$command = "unoconv -f pdf helloWorld.docx";
exec($command, $output);

if (empty($output)) {
    echo '生成PDF文件成功！';
} else {
    echo '生成PDF文件失败！';
}

Through the above code, we have successfully converted "helloWorld.docx" into a PDF file "helloWorld.pdf" containing the same content.

3. Improve the conversion process

In response to different needs, we need to improve the above process. For example, when generating a Word document, we can set the title, style, font and other information of the document through the API provided by PHPWord; when converting the Word document to PDF, we can use some options to control the generation of PDF, such as setting the PDF Security attributes, setting the page size of PDF, etc.

For example, the following code uses the PHPWord API to generate a more complex Word document and converts it to PDF format via unoconv.

require_once '../PHPWord/src/PhpWord/Autoloader.php';
\PhpOffice\PhpWord\Autoloader::register();

$phpWord = new \PhpOffice\PhpWord\PhpWord();
$section = $phpWord->addSection();
$section->addText('This is a title', array('size' => 20, 'bold' => true));
$section->addTextBreak(1);
$section->addText('This is a paragraph', array('size' => 12, 'color' => '000000', 'bold' => false));
$section->addTextBreak(1);
$table = $section->addTable();
$table->addRow();
$table->addCell(3000)->addText('Field A');
$table->addCell(3000)->addText('Field B');
$table->addCell(3000)->addText('Field C');
$table->addRow();
$table->addCell(3000)->addText('Value A');
$table->addCell(3000)->addText('Value B');
$table->addCell(3000)->addText('Value C');

$objWriter = \PhpOffice\PhpWord\IOFactory::createWriter($phpWord, 'Word2007');
$objWriter->save('document.docx');

$command = "unoconv --format=pdf --output=pdffile.pdf document.docx";
exec($command, $output);

if (empty($output)) {
    echo '生成PDF文件成功！';
} else {
    echo '生成PDF文件失败！';
}

Through the above code, we have successfully generated a Word document "document.docx" containing titles, paragraphs and tables, and converted it into a PDF file "pdfFile.pdf" through unoconv.

Summary

Using the above method, we can create a Word document based on PHP and convert it to PDF format through unoconv. Not only that, we can also generate more complex Word documents through the API provided by PHPWord, and control the generated PDF files through the options provided by unoconv. This method is both convenient and fast, and can ensure the beauty of the document, and is very suitable for application in actual work.

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