PHP Classes

Protect Image: Put transparent watermark text on images

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Version License PHP version Categories
protect-image 0.2MIT/X Consortium ...5PHP 5, Graphics
Description 

Author

Karl Holz

This class can put transparent watermark text on images.

It can create an image that is the result of a given image with a watermark text rendered on top of the original image.

The transparency level of the watermark text area, the position, the font and the color of the watermark text are configurable parameters.

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Name: Karl Holz <contact>
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Age: 44
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Example

<?php

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
$file='oldboxes.png';


$test='string';
//$test='save';
//$test='encode';
//$test='invalid_file';
//$test='encode_html';
//$test='invalid_img';


require_once 'protectimg.class.php';

switch ($test) {
  case 'string':
   $img=new protect_img($file);
   $img->add_watermark="Name Here";
   $img->add_watermark="<[email protected]>";
   $img->add_watermark="http://www.website.com";
   // add watermark text first, width guessing might not work out as you want,
   // just play around to get the proper width to meet your needs
   $img->watermark_width=300;
   $img->watermark_font=8;
   /**
$img->watermark_alpha=46;
$img->watermark_font=5;
$img->watermark_start_x=20;
$img->watermark_start_y=180;
$img->watermark_border=8;
$img->watermark_height=70;
$img->watermark_colors=array('0xABCDEF', '0x012345');
 */
   $img->water_mark();
   $img->send_img();
  break;
  case 'invalid_file':
   $img=new protect_img('$invalid');
  break;
  case 'invalid_img':
   $invalid='/var/log/apache2/error.log';
   $img=new protect_img($invalid);
  break;
  case 'encode': // return encoded string, for storing in a db, after water_mark
   header("Content-type: text/plain");
   $img=new protect_img($file);
   //$img->add_watermark=$mark;
   $img->add_watermark="Name Here";
   $img->add_watermark="<[email protected]>";
   $img->add_watermark="http://www.website.com";
   // add watermark text first, width guessing might not work out as you want,
   // just play around to get the proper width to meet your needs
   $img->watermark_width=300;
   $img->watermark_font=8;
   $img->encode_img();
   echo $img->encoded;
   exit();
  break;
  case 'encode_html': // encode image, after water_mark
   header("Content-type: text/html");
   $img=new protect_img($file);
   //$img->add_watermark=$mark;
   $img->add_watermark="Name Here";
   $img->add_watermark="<[email protected]>";
   $img->add_watermark="http://www.website.com";
   // add watermark text first, width guessing might not work out as you want,
   // just play around to get the proper width to meet your needs
   $img->watermark_width=300;
   $img->watermark_font=8;
   $img->water_mark();
   $img->encode_img();
   echo $img->encode_img_html();
  break;
  case 'save':
   $img=new protect_img($file);
   //$img->add_watermark=$mark;
   $img->add_watermark="Name Here";
   $img->add_watermark="<[email protected]>";
   $img->add_watermark="http://www.website.com";
   // add watermark text first, width guessing might not work out as you want,
   // just play around to get the proper width to meet your needs
   $img->watermark_width=300;
   $img->watermark_font=8;
   $img->water_mark();
   $img->save_img();

   $file= str_replace(basename($_SERVER['SCRIPT_NAME']), $img->save ,$_SERVER['SCRIPT_NAME']);
   header("Content-type: text/html");
   echo '<a href="http://'.$_SERVER['HTTP_HOST'].$file.'" >'.$file.'</a> saved';
  break;
}
?>

Screenshots (2)  
  • after.jpg
  • before.jpg
  Files folder image Files (7)  
File Role Description
Accessible without login Plain text file img.php Example Example script
Accessible without login Image file oldboxes.png Photo test img input
Plain text file protectimg.class.php Class protect image class
Accessible without login Plain text file tester.php Example this will test out the class, it's all setup within a case statement use the $test variable
Accessible without login Image file wmoldboxes.png.jpg Output test watermark output

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Total:743
This week:0
All time:4,514
This week:524Up

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