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  • How to Add watermark in Image using PHP

    @rafiahmad
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    Hello Reader's!Sometime you see watermark on image like trademark and company logo, so questions is that how you can do  this?
    Today in my blog i am going to explain how you can create image with trademark using PHP.

    create index.php file in your directory

    <!DOCTYPE HTML>
<html>
<head>
<style type="text/css">
#upload-form {
	padding: 40px;
	background: #D3D3D3;
	border: 1px solid #000;
	margin-left: auto;
	margin-right: auto;
	width: 400px;
}
#upload-form input[type=file] {
	border: 1px solid #ddd;
	padding: 4px;
}
#upload-form input[type=submit] {
	height: 30px;
}
</style>
</head>
<body>
<form action="watermark.php" id="upload-form" method="post" enctype="multipart/form-data">
	<input type="file" name="image_file" />
	<input type="submit" value="Send Image" />
</form>

</body>
</html>

    Now you need to create watermark.php file.

    <?php
if(isset($_FILES['image_file']))
{
	$max_size = 800; //max image size in Pixels
	$destination_folder = '/var/www/html/watermark/images'; //where your image with watermark saved
	$watermark_png_file = 'watermark.png'; //Create your own watermark.png file
	
	$image_name = $_FILES['image_file']['name']; //file name
	$image_size = $_FILES['image_file']['size']; //file size
	$image_temp = $_FILES['image_file']['tmp_name']; //file temp
	$image_type = $_FILES['image_file']['type']; //file type

	switch(strtolower($image_type)){ //determine uploaded image type 
			//Create new image from file
			case 'image/png': 
				$image_resource =  imagecreatefrompng($image_temp);
				break;
			case 'image/gif':
				$image_resource =  imagecreatefromgif($image_temp);
				break;          
			case 'image/jpeg': case 'image/pjpeg':
				$image_resource = imagecreatefromjpeg($image_temp);
				break;
			default:
				$image_resource = false;
		}
	
	if($image_resource){
		//Copy and resize part of an image with resampling
		list($img_width, $img_height) = getimagesize($image_temp);
		
	    //Construct a proportional size of new image
		$image_scale        = min($max_size / $img_width, $max_size / $img_height); 
		$new_image_width    = ceil($image_scale * $img_width);
		$new_image_height   = ceil($image_scale * $img_height);
		$new_canvas         = imagecreatetruecolor($new_image_width , $new_image_height);

		if(imagecopyresampled($new_canvas, $image_resource , 0, 0, 0, 0, $new_image_width, $new_image_height, $img_width, $img_height))
		{
			
			if(!is_dir($destination_folder)){ 
				mkdir($destination_folder);//create dir if it doesn't exist
			}
			
			//center watermark
			$watermark_left = ($new_image_width/2)-(300/2); //watermark left
			$watermark_bottom = ($new_image_height/2)-(100/2); //watermark bottom

			$watermark = imagecreatefrompng($watermark_png_file); //watermark image
			imagecopy($new_canvas, $watermark, $watermark_left, $watermark_bottom, 0, 0, 300, 100); //merge image
			
			//output image direcly on the browser.
			header('Content-Type: image/jpeg');
			imagejpeg($new_canvas, NULL , 90);
			
			//Or Save image to the folder
			imagejpeg($new_canvas, $destination_folder.'/'.$image_name , 90);
			
			//free up memory
			imagedestroy($new_canvas); 
			imagedestroy($image_resource);
			die();
		}
	}
}

?>

    I hope you like this please feel free to comment.

    How to Add watermark in Image using PHP
    Add watermark on image image with watermark watermark in php company logo watermark watermark add watermark image to image watermark image in PHP
    Comment on it

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