BuffaloHELP
Apr 24 2006, 02:46 AM
This script was found on the net http://tips-scripts.com/?tip=watermark#tip B&T's Tips & Scripts site. Just in case the site may not show, I will include the code here: List of things needed: 1. your image in any format 2. watermark image--in gif format with transparent background 3. script below with name (i.e. watermark.php) CODE <?php // this script creates a watermarked image from an image file - can be a .jpg .gif or .png file // where watermark.gif is a mostly transparent gif image with the watermark - goes in the same directory as this script // where this script is named watermark.php // call this script with an image tag // <img src="watermark.php?path=imagepath"> where path is a relative path such as subdirectory/image.jpg $imagesource = $_GET['path']; $filetype = substr($imagesource,strlen($imagesource)-4,4); $filetype = strtolower($filetype); if($filetype == ".gif") $image = @imagecreatefromgif($imagesource); if($filetype == ".jpg") $image = @imagecreatefromjpeg($imagesource); if($filetype == ".png") $image = @imagecreatefrompng($imagesource); if (!$image) die(); $watermark = @imagecreatefromgif('watermark.gif'); $imagewidth = imagesx($image); $imageheight = imagesy($image); $watermarkwidth = imagesx($watermark); $watermarkheight = imagesy($watermark); $startwidth = (($imagewidth - $watermarkwidth)/2); $startheight = (($imageheight - $watermarkheight)/2); imagecopy($image, $watermark, $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight); imagejpeg($image); imagedestroy($image); imagedestroy($watermark); ?> Name this script, i.e. watermark.php and call this script as following: HTML <img src="watermark.php?path=image_name.filetype"> the only thing you need to chage is "image_name.filetype" and of course you can have the relative path such as: HTML <img src="folder/watermark.php?path=folder/imagename"> The caution here is the script watermark.php and watermark.gif should be in the same location. watermark.gif should have transparent background. As you can read it from the site, the location where the watermark.gif appears can be modified by adjusting this line of the code: CODE $startwidth = (($imagewidth - $watermarkwidth)/2);
$startheight = (($imageheight - $watermarkheight)/2); To have it appear on the bottom right corner, try this: CODE $startwidth = (($imagewidth - $watermarkwidth) );
$startheight = (($imageheight - $watermarkheight) ); Personal note: I have installed Apache2 and PHP5 in my computer and couldn't get this working at first. Later I found out I had to edit php.ini under extension to enable php_gd2.dll in order to make it work under http://localhost/I hope you find a good usage out of this 
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Dooga
Apr 24 2006, 03:21 AM
Hey this can be really useful when it comes to using images. You no longer have to make a watermark for every image that you make in image editing software! Now, does this work with hotlinks? It would be cool if I can put a watermark on an imageshack uploaded image or a hotlinked banner etc...
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BuffaloHELP
Apr 24 2006, 03:32 AM
Do you mean like this? HTML <img src="watermark.php?path=http://site/image.type"> I tested it out and what do you know, it works... wow good question and what a find! But remember that watermark.gif should be with watermark.php in the same location. I wonder if the script can be modified so that the watermark.gif can be located elsewhere...? For those PHP gurus out there, see if you can modify this script so that you can use different watermark.gif images. So that we can use one line command such that you can use multiple or alternate watermark.gif images: HTML <img src="watermark.php?mark=watermark.gif_location&path=image_location"> Again, since I am very new to PHP programming, I'm assuming two different var can be called in one command. So basically, the command would be like: "watermark script, location of watermark.gif, location of image"
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Dooga
Apr 24 2006, 03:36 AM
Muwhaha now I can steal the Trap17 sigs and said I made them!! I'm just kidding... but it is a very useful find!
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WindAndWater
Apr 24 2006, 05:35 AM
Here's one with a variable path as requested. It works on my Trap17 account. I cleaned up the code, added some idiot proofing, and made it so that the watermark could be a .png which also supports alpha channels (transparency) and which won't dither like gifs do. Like the original, it only supports images with .gif/.jpg/.jpeg/.png extensions. I left the original author's (bad) naming scheme. CODE <?php // this script creates a watermarked image from an image file - can be a .jpg .gif or .png file // where watermark.gif is a mostly transparent gif image with the watermark - goes in the same directory as this script // where this script is named watermark.php // call this script with an image tag // <img src="watermark.php?path=imagepath"> where path is a relative path such as subdirectory/image.jpg $imagesource = $_GET['path']; $watermarkPath = $_GET['watermark']; $filetype = substr($imagesource,strlen($imagesource)-4,4); $filetype = strtolower($filetype); $watermarkType = substr($watermarkPath,strlen($watermarkPath)-4,4); $watermarkType = strtolower($watermarkType); if($filetype == ".gif") $image = @imagecreatefromgif($imagesource); else if($filetype == ".jpg" || $filetype == "jpeg") $image = @imagecreatefromjpeg($imagesource); else if($filetype == ".png") $image = @imagecreatefrompng($imagesource); else die(); if(!$image) die(); if($watermarkType == ".gif") $watermark = @imagecreatefromgif($watermarkPath); else if($watermarkType == ".png") $watermark = @imagecreatefrompng($watermarkPath); else die(); if(!$watermark) die(); $imagewidth = imagesx($image); $imageheight = imagesy($image); $watermarkwidth = imagesx($watermark); $watermarkheight = imagesy($watermark); $startwidth = (($imagewidth - $watermarkwidth)/2); $startheight = (($imageheight - $watermarkheight)/2); imagecopy($image, $watermark, $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight); imagejpeg($image); imagedestroy($image); imagedestroy($watermark); ?> It can be accessed by using CODE <img src="watermark.php?path=imagePath.ext&watermark=watermarkPath.gif> or <img src="watermark.php?path=imagePath.ext&watermark=watermarkPath.png> edit: Removed a "." and now the entire script's correct.
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BuffaloHELP
Apr 24 2006, 07:41 AM
WindAndWater, Oh good lord! That worked beautifully! Thank you. And you're right: although I would not use png at this moment (since my watermark will be simple and small) the need for making a script that can be adaptable is very crucial to a perfect script. Thanks again!
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Saint_Michael
Apr 24 2006, 09:18 AM
hmmm interesting script but from what I search up on this type of script you can use gd support and also htaccess as well to make your water makr even more dynamic and what not. here are some example links htaccess versiongd support
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Sprnknwn
Apr 24 2006, 01:35 PM
Cool. I didnŽt know that you could do that with a php script. Thanks for showing it to us, maybe IŽll give it a try.
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BuffaloHELP
Apr 24 2006, 03:10 PM
QUOTE
edit: Removed a "." and now the entire script's correct.
WindAndWater, Where did you remove your "dot"? Because the first script worked just fine form me. If you are referring to JPEG, who actually uses JPEG extension today except for avi purpose?
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WindAndWater
Apr 24 2006, 09:41 PM
Yup I removed the . so that it reads "jpeg" as opposed to ".jpeg" which is 5 characters long, so it will never match a 4 character extension. Truthfully probably no-one uses .jpeg anymore, but it's an old habit that I haven't kicked yet. :-)
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iGuest
May 19 2009, 06:01 PM
Not supporting watermark through hosting server
Watermark Your Image With Simple Php Script
hi
For our site, presently it has pre compiled ffmpeg file for converting to flv video file. But it does not support water mark on video for existing hosting server. If it has to support water mark then we have to support ffmpeg library. It should have in our site server's. Aready we have made request to hosting server for supporting ffmpeg library, Even though they are saying that 'We do not have ffmpeg installed, but you are free to upload a pre-compiled Linux binary to their home directory and reference it in their code from there."'
please solve the problem if anybody
-reply by ratnakarraju
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iGuest
Mar 14 2009, 03:51 PM
I need a script that adds text based watermark to downloaded image
Watermark Your Image With Simple Php Script
Hello
many thanks for people who post useful code on this board and educate us on how to do things.
I am a photographer and I need a php script to run on my web site to stamp user id or mail address of my visitors/members when they download my photos.
The watermark source will be text only stating that "This picture was downloaded by (visitors e mail address _ here) from (my site name_here ) "
I wish also that this info could be squeezed somewhere in the exif field of the original jpeg photo that can come up upon examination generated on the fly when the file is being packaged with the watermark prior to download starts.
Think of it as a similar script like the rapidshare or megaupload download script that masks the actual location of the image on the server so the picture can not be accessed or discovered by a possible google spidered direct link.
My motivation on doing this is simply to discourage lamers who re-upload my material and give away for free on bbs and forums without credit where it is due. I want to make it a bit more difficult for them and easier to track them down from the exif.
Does anyone have written any code to do this? or have any idea on how to code this
I know some php but I am totally nul as far as coding graphics
thanks
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Sandeep Singh
Jan 3 2009, 10:24 PM
Thanks a lot as i really needed that script.Please update me with newer scripts. Thank you.
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iGuest
Dec 12 2008, 12:45 PM
iGuest
Aug 2 2008, 06:53 PM
Doesn\\
Watermark Your Image With Simple Php Script
If everytime someone accesses an image needing watermark it requires the server to process 2 images together on every request. Wouldn't it be better to place that script in a folder of unwatermarked images and it can read each image and move it to the watermarked directory, so it only has to process the watermark code once for each image instead of thousands of times. I am incorporating the watermark specific code into an photo gallery admin section where a user uploads a photo, it resizes it to the max allowed size, then resizes it again to produce a thumbnail version and then applies the watermark to the first resized image. -reply by Justin Anderson
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