http://www.phpscriptexpert.com/script.php?pn=Image_Resize_and_Watermark&pid=198

With this script you can resize your image, ad a watermark or copyright to image and output the image in JPEG, GIF or PNG format.

Usage:

1. Parameters are passed via URL: image.php?image=1.jpg;

2. You can set the type of your output image to JPG, GIF or PNG format like this: image.php?image=1.jpg&type=png; If you don't specify the type of the output image, the script will output the image in the original format image.php?image=1.jpg;

3. To add a watermark to image you heave to set 2 variables: watermark_text and watermark_color(optional).Black will be use if you do not set the watermark_color;

Example:

1) image.php?image=1.jpg&watermark_text=1234567890&watermark_color=fffff;

2) image.php?image=1.jpg&watermark_text=1234567890;

4. Resizing images:

a. Exact size:

Variables: w and h

Example: image.php?image=1.jpg&w=100&h=100

b. Maxim size:

Variable: maxim_size

Example: image.php?image=1.jpg&maxim_size=300

c. Percent:

Variable: percent

Example: image.php?image=1.jpg&percent=50

d. Square:

Variable: square

Example: image.php?image=1.jpg&square=100

I use this type of resizing for creating thumbnails that heave the same size

 

 

<?

/*

http://www.phpscriptexpert.com/script.php?pn=Image...%20and%20Watermark&pid=198

*/



if($_GET['image']){

$image = $_GET['image'];



if($_GET['type']=="jpg"){

header("Content-type: image/jpeg");

}elseif($_GET['type']=="gif"){

header("Content-type: image/gif");

}elseif($_GET['type']=="png"){

header("Content-type: image/png");

}else{

if(substr($image, -3)=="jpg" || substr($image, -3)=="JPG"){header("Content-type: image/jpeg");}

elseif(substr($image, -3)=="gif" || substr($image, -3)=="GIF"){header("Content-type: image/gif");}

elseif(substr($image, -3)=="png" || substr($image, -3)=="PNG"){header("Content-type: image/png");}

}



if(substr($image, -3)=="jpg" || substr($image, -3)=="JPG"){$im = imagecreatefromjpeg($image);}

elseif(substr($image, -3)=="gif" || substr($image, -3)=="GIF"){$im = imagecreatefromgif($image);}

elseif(substr($image, -3)=="png" || substr($image, -3)=="PNG"){$im = imagecreatefrompng($image);}



if($_GET['percent']){

$x = round((imagesx($im)*$_GET['percent'])/100);

$y = round((imagesy($im)*$_GET['percent'])/100);

$yyy=0;

$xxx=0;

$imw = imagecreatetruecolor($x,$y);

}elseif($_GET['w'] and $_GET['h']){

$x = $_GET['w'];

$y = $_GET['h'];

$yyy=0;

$xxx=0;

$imw = imagecreatetruecolor($x,$y);

}elseif($_GET['maxim_size']){

if(imagesy($im)>=$_GET['maxim_size'] || imagesx($im)>=$_GET['maxim_size']){

if(imagesy($im)>=imagesx($im)){

$y = $_GET['maxim_size'];

$x = ($y*imagesx($im))/imagesy($im);

}else{

$x = $_GET['maxim_size'];

$y = ($x*imagesy($im))/imagesx($im);

}

}else{

$x = imagesx($im);

$y = imagesy($im);

}

$yyy=0;

$xxx=0;

$imw = imagecreatetruecolor($x,$y);

}elseif($_GET['square']){

if(imagesy($im)>=$_GET['square'] || imagesx($im)>=$_GET['square']){

if(imagesy($im)>=imagesx($im)){

$x = $_GET['square'];

$y = ($x*imagesy($im))/imagesx($im);

$yyy=-($y-$x)/2;

$xxx=0;

}else{

$y = $_GET['square'];

$x = ($y*imagesx($im))/imagesy($im);

$xxx=-($x-$y)/2;

$yyy=0;

}

}else{

$x = imagesx($im);

$y = imagesy($im);

$yyy=0;

$xxx=0;

}

$imw = imagecreatetruecolor($_GET['square'],$_GET['square']);

}else{

$x = imagesx($im);

$y = imagesy($im);

$yyy=0;

$xxx=0;

$imw = imagecreatetruecolor($x,$y);

}



imagecopyresampled($imw, $im, $xxx,$yyy,0,0,$x,$y,imagesx($im), imagesy($im));



if($_GET['watermark_text']){

if($_GET['watermark_color']){$watermark_color=$_GET['watermark_color'];

}else{

$watermark_color="000000";

}

$red=hexdec(substr($watermark_color,0,2));

$green=hexdec(substr($watermark_color,2,2));

$blue=hexdec(substr($watermark_color,4,2));



$text_col = imagecolorallocate($imw, $red,$green,$blue);

$font = "georgia.ttf"; //this font(georgia.ttf) heave to be in the same directory as this script

$font_size = 12;

$angle = 0;

$box = imagettfbbox($font_size, $angle, $font, $_GET['watermark_text']);

$x = 5;

$y = 17;

imagettftext($imw, $font_size, $angle, $x, $y, $text_col, $font, $_GET['watermark_text']);



}



if($_GET['type']=="jpg"){imagejpeg($imw);}

elseif($_GET['type']=="gif"){imagegif($imw);}

elseif($_GET['type']=="png"){imagepng($imw);}

else{

if(substr($image, -3)=="jpg" || substr($image, -3)=="JPG"){imagejpeg($imw);}

elseif(substr($image, -3)=="gif" || substr($image, -3)=="GIF"){imagegif($imw);}

elseif(substr($image, -3)=="png" || substr($image, -3)=="PNG"){imagepng($imw);}

}



imagedestroy($imw);

}

?>