December 22, 2019
How to add watermark to existing PDF using php
Let us discuss about How to add watermark to existing PDF using php
- First you need to install FPDI library(using composer) OR download from git
- After that create a create a index.html and pdf.php File in your root directory
- Copy Bellow code in index.html File
Index.html
<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="UTF-8">
<title>Add watermark to existing pdf using FPDF and FPDI</title>
<link rel='stylesheet' href='http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css'>
<link rel="stylesheet" href="style.css">
</head>
<body>
<!-- partial:index.partial.html -->
<div class="container-fluid itinfotech-builder">
<h1>Add watermark to existing pdf using FPDF and FPDI</h1>
<form name="watermark_to_pdf" id="watermark_to_pdf" action="pdf.php" method="post">
<div class="row">
<div class="col-sm-12 loc_form">
<div class="row">
<div class="col-sm-4">
<div class="form-group">
<label for="title" class="control-label">Title</label>
<input required class="form-control" id="title" name="title" placeholder="Main title" value="Really incredible!!" maxlength="255" type="text" tabindex="2">
</div>
</div>
<div class="col-sm-6">
<div class="form-group text-right">
<button id="genrate_pdf" name="genrate_pdf" value="I"
type="submit" class="btn btn-primary btn-block" tabindex="9"> preview</button>
</div>
</div>
</div>
<hr>
</div>
</div>
</form>
</div>
<!-- partial -->
<script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
</body>
</html>pdf.php
<?php
function add_watermark($file, $x_axis, $y_axis, $op, $outdir)
{
require_once($_SERVER["DOCUMENT_ROOT"].'/vendor/autoload.php');
$pdf = new \setasign\Fpdi\Fpdi();
if (file_exists($file)){
$pagecount = $pdf->setSourceFile($file);
} else {
return FALSE;
}
$tpl = $pdf->importPage(1);
$pdf->addPage();
$size = $pdf->getTemplateSize($tpl);
$pdf->useTemplate($tpl, null, null, $size['width'], $size['height'], TRUE);
//Put the watermark
$data=$pdf->Image('custom.png', $x_axis, $y_axis, 0, 20, 'png');
if ($outdir === TRUE){
$pdf->Output();
} else {
return $pdf;
}
}
//
if(count($_POST)>0 && !empty($_POST['title']) && !empty($_POST['genrate_pdf']))
{
$text = $_POST['title'];
$my_img = imagecreate( 500, 80 ); //width & height
$background = imagecolorallocate( $my_img, 240, 79, 83 );
$text_colour = imagecolorallocate( $my_img, 0, 0, 0 );
$line_colour = imagecolorallocate( $my_img, 128, 255, 0 );
imagestring( $my_img, 4, 30, 25, $text, $text_colour );
imagesetthickness ( $my_img, 5 );
imageline( $my_img, 30, 45, 165, 45, $line_colour );
header( "Content-type: image/png" );
imagepng( $my_img,'custom.png');
add_watermark("example12456.pdf", 80, 80, 90,TRUE);
}
?>How to install FPDI library using composer
{
"require": {
"setasign/fpdi-tcpdf": "^2.0",
"setasign/fpdf": "^1.8"
}
}Last do: composer update in terminal
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