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<?php

  // Give the Complete Path of the folder where you want to save the image	
  $folder=".";
  
  
function find_folder_thumb ($folder) {

    $dirs = array_diff(scandir($folder), array('.', '..', 'orig')); 
    
     foreach($dirs as $dir) {
         if(is_dir($dir)) {
            $thumbsdir = $dir . '/thumbs/';
            echo $thumbsdir;
            echo "\r\n";
            addwatermark ($thumbsdir);
         }
         
     }
    
}    
  
  
  
  
  
function addwatermark($folder) {
    
  $myfiles = array_diff(scandir($folder), array('.', '..', 'orig')); 
  $text = "phoca_thumb_l";    // !!! set part of filename, which is used to add watermark. For my purpose is used only large thumbs
  
  
  foreach($myfiles as $imgfile) {
      
        
        if (strpos($imgfile,$text) !== false) {

      // Set the thumbnail name
        $dir = $folder.'orig';
        if (!file_exists($dir)) {
            mkdir($dir, 0755, true);
        }
        
        $origimage=$dir. '/' .$imgfile;
        $thumbnail=$folder.$imgfile;
        
        if (!file_exists($origimage)) {         
          //echo 'TH: '.$thumbnail . '   OR: ' . $origimage;
          copy($thumbnail, $origimage);
        }
      
        // Load the mian image
        $source = imagecreatefromjpeg($dir. '/' .$imgfile);  
        
        // load the image you want to you want to be watermarked
        $watermark = imagecreatefrompng('AKSA_logo.png');  // filename of watermark - transparent PNG
        
        // get the width and height of the watermark image
        $water_width = imagesx($watermark);
        $water_height = imagesy($watermark);
        
         // get the width and height of the main image image
        $main_width = imagesx($source);
        $main_height = imagesy($source);
        
        // Set the dimension of the area you want to place your watermark we use 0
        // from x-axis and 0 from y-axis 
        
        $dime_x = ($main_width - $water_width)/2;  // center logo verticaly
        $dime_y = ($main_height - $water_height)/2; // center logo horizontaly

        // copy both the images
        imagecopy($source, $watermark, $dime_x, $dime_y, 0, 0, $water_width, $water_height);

        // Final processing Creating The Image
        imagejpeg($source, $thumbnail, 100);
        echo $thumbnail . " watermark added OK! \r\n";
  }

  }
  
}


find_folder_thumb ($folder);
?>