PHP Image and Text Watermark

December 30, 2012 39002 views 4 comments

I received many tutorial requests from clients that asked how to generate watermark image using PHP.
In this post, I coded two functions such as watermark_text() and watermark_image() to generate text and images watermarks on images. Integrate this to your web project upload image system and produce copyright photos.

Watermark with Text - watermark_text() Text watermark function, here you have to
configure font source, size and text.

$font_path = “GILSANUB.TTF”;
$font_size = 30; // in pixcels
$water_mark_text_2 = “GillTech.in”; //
Watermark Text
function watermark_text($oldimage_name,
$new_image_name)
{
global $font_path, $font_size, $water_mark_ text_2;
list($owidth,$oheight) = getimagesize($ oldimage_name);
$width = $height = 300;
$image = imagecreatetruecolor($width, $height);
$image_src =imagecreatefromjpeg($oldimage_name);
imagecopyresampled($image,$image_src, 0, 0, 0, 0, $width, $height,$owidth, $oheight);
$blue = imagecolorallocate($image, 79,166, 185);
imagettftext($image, $font_size, 0, 68, 190, $blue, $font_path,$water_mark_text_2);
imagejpeg($image,$new_image_name,100);
imagedestroy($image);
unlink($oldimage_name);
return true;
}

Watermark with Image - watermark_image() Image watermark function, here you have to configure image water mark source.

$image_path = “gilltech.png”;
function watermark_image($oldimage_name, $new_image_name)
{
global $image_path;
list($owidth,$oheight) =getimagesize($oldimage_name);
$width = $height = 300;
$im =imagecreatetruecolor($width, $height);
$img_src = imagecreatefromjpeg($oldimage_name);
imagecopyresampled($im,$img_src, 0, 0, 0, 0, $width, $height,$owidth, $oheight);
$watermark = imagecreatefrompng($image_path);
list($w_width, $w_height) = getimagesize($image_path);
$pos_x = $width – $w_width;
$pos_y = $height – $w_height;
imagecopy($im, $watermark,$pos_x, $pos_y,0, 0, $w_width, $w_height);
imagejpeg($im,$new_image_name, 100);
imagedestroy($im);
unlink($oldimage_name);
return true;
}
Image Form Contains simple PHP and HTML form submit code. Here HTML form sending post request.
<?php
$demo_image= “”;
if(isset($ _POST['createmark']) and $_POST ['createmark'] == “Submit”)
{
$path = ” uploads/”;
$valid_formats = array(“jpg”,”bmp”,”jpeg”);
$name = $_FILES['imgfile']['name'];
if(strlen($name))
{
list($txt, $ext) = explode(“.”, $name);
if(in_array($ext,$valid_formats) && $_FILES['imgfile']['size'] <= 256*1024)
{
$upload_status = move_uploaded_file($_FILES['imgfile']['tmp_name'], $path.$_FILES['imgfile']['name']);
if($upload_status){
$new_name = $path.time().”.jpg”;
// Here you have to user functins
watermark_text or watermark_image
if(watermark_text($path.$_FILES['imgfile']['name'], $new_name))
$demo_image = $new_name;
}
}
else
$msg=” File size Max 256 KB or Invalid file format.”;
}
}
?>

// HTML Code
<form name=”imageUpload”
method=”post” enctype=”multipart/form-
data” >
Upload Image Image : <input type=”file” name=”imgfile” /
><br />
<input type=”submit” name=”createmark” value=”Submit” />
<?php
if(!empty($demo_image))
echo ‘<img src=”‘.$demo_image.’” />’;
?>
</form>

4 thoughts on “PHP Image and Text Watermark

  1. Ebony Vanis

    My spouse and I stumbled over here different web page and thought I may as well check things out. I like what I see so i am just following you. Look forward to going over your web page yet again.

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