Permanent Watermark with GD2

[Burpee]

I was unable to modify my original post and I do think that the top post should be the newest version. So I suggest you either split this post off or move it to the first somehow.

I decided to "modify" this mod so it'll work in CPG 1.3 and my brother helped me fix the "_normal" bug

Permanent Watermark with GD2 MOD by Sammy


For CPG users who wants to add GD2 watermark function on their gallery.

This MOD uses GD2!

Here is how to mod CPG 1.3 to be able to add watermark automatically on new pics and by choise on all pics in selected album.
This is quite long post, but it takes only about 10 minutes to add this mod

Files that needs to be modified:
Lang/english.php
include/picmgmt.inc.php
util.php
config.php
(and 4 SQL command to execute)


REMEMBER to take backup from all files that You are modifying


1.
Open file Lang/english.php

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'th_wd' => 'Width',

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                'wm_bottomright' => 'Bottom right',
                'wm_bottomleft' => 'Bottom left',
                'wm_topleftt' => 'Up left',
                'wm_topright' => 'Up Right',
                'wm_both' => 'Both',
                'wm_original' => 'Original',
                'wm_resized' => 'Resized',


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  array('Display notices in debug mode', 'debug_notice', 1), //cpg1.3.0


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               'Image watermarking',
               array('Watermark Image on upload', 'enable_watermark', 1),
               array('Where to place the watermark', 'where_put_watermark', 11),
               array('which files to watermark', 'which_files_to_watermark', 12),
               array('Which file to use for watermark', 'watermark_file', 0),

               
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  'delete_orphans' => 'Delete orphaned comments (works on all albums)',

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        'watermarks' => 'Add watermarks',
        'watermark_normal' => 'Resized images only',
        'watermark_image' => 'Original sized only',
        'watermark_both' => 'Original and resized images',
        'watermark_wait' => 'Watermarking images...',
        'watermark_continue_wait' => 'Continuing to watermarking originals and/or resized images...',


2.
Open file include/picmgmt.inc.php

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$image_filesize = filesize($image);

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       //Adds watermarks to new images
       if ($CONFIG['enable_watermark'] == '1' && $CONFIG['which_files_to_watermark'] == 'both' || $CONFIG['which_files_to_watermark'] == 'original') {
               if (!watermark($image))  //this is for full size image
                       return false;
       }
       if ($CONFIG['enable_watermark'] == '1' && $CONFIG['which_files_to_watermark'] == 'both' || $CONFIG['which_files_to_watermark'] == 'resized') {
       if (file_exists($normal) && !watermark($normal))  //this is for intermediate size image
           return false;
       }
               
The following line has been modified to fix the the "_normal bug"

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       if (file_exists($normal) && !watermark($normal))  //this is for intermediate size image



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?> (or end of picmgmt.inc.php)

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        /**
         * watermark_image()
         *
         * Create a file containing a watermarked image
         *
         * @param  $src_file the source file
         * @param  $dest_file the destination file
         * @param  $new_size the size of the square within which the new image must fit
         * @param  $method the method used for image resizing  //ainoastaan gd2
         * @return 'true' in case of success
         */
        function watermark($src_file)
        {
            global $CONFIG, $ERROR;
            global $lang_errors;

            $imginfo = getimagesize($src_file);
            if ($imginfo == null)
                return false;
            // GD can only handle JPG & PNG images
            if ($imginfo[2] != GIS_JPG && $imginfo[2] != GIS_PNG) {
                $ERROR = $lang_errors['gd_file_type_err'];
                return false;
            }
            // height/width
            $srcWidth = $imginfo[0];
            $srcHeight = $imginfo[1];
         /*   if ($thumb_use == 'ht') {
                $ratio = $srcHeight / $new_size;
            } elseif ($thumb_use == 'wd') {
                $ratio = $srcWidth / $new_size;
            } else {
                $ratio = max($srcWidth, $srcHeight) / $new_size;
            }
            $ratio = max($ratio, 1.0);*/
            $destWidth = $srcWidth; //(int)($srcWidth / $ratio);
            $destHeight = $srcHeight; //(int)($srcHeight / $ratio);

                        $dest_file = $src_file;
            // Method for thumbnails creation
        //    switch ($method) {
        //        case "gd2" :
                    if (!function_exists('imagecreatefromjpeg')) {
                        cpg_die(CRITICAL_ERROR, 'PHP running on your server does not support the GD image library, check with your webhost if ImageMagick is installed', __FILE__, __LINE__);
                    }
                    if (!function_exists('imagecreatetruecolor')) {
                        cpg_die(CRITICAL_ERROR, 'PHP running on your server does not support GD version 2.x, please switch to GD version 1.x on the config page', __FILE__, __LINE__);
                    }
                    if ($imginfo[2] == GIS_JPG)
                        $src_img = imagecreatefromjpeg($src_file);
                    else
                        $src_img = imagecreatefrompng($src_file);
                    if (!$src_img) {
                        $ERROR = $lang_errors['invalid_image'];
                        return false;
                    } //duunataan wesileima
                    $dst_img = imagecreatetruecolor($destWidth, $destHeight);
                                        /*$dst_img =*/   ImageAlphaBlending($dst_img, true) or die ("Could not alpha blend"); // Enable when on GD 2+
                   imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $destWidth, (int)$destHeight, $srcWidth, $srcHeight);
                                   $logoImage = ImageCreateFromPNG($CONFIG['watermark_file']);
                                        $logoW = ImageSX($logoImage);
                                        $logoH = ImageSY($logoImage);
                                        //where is the watermark displayed...
                                        $pos = $CONFIG['where_put_watermark'];
                                        if ($pos == "topleft") {
                                        $src_x = 5; 
                                        $src_y = 5;
                                        } else if ($pos == "topright") {
                                        $src_x = $srcWidth - ($logoW + 5);
                                        $src_y = 5;
                                        } else if ($pos == "bottomleft") {
                                        $src_x = 5;
                                        $src_y = $srcHeight - ($logoH + 5);
                                        } else if ($pos == "bottomright") {
                                        $src_x = $srcWidth - ($logoW + 5);
                                        $src_y = $srcHeight - ($logoH + 5);
                                        }

                                        ImageCopy($dst_img,$logoImage,$src_x,$src_y,0,0,$logoW,$logoH); //$dst_x,$dst_y,0,0,$logoW,$logoH);
                    imagejpeg($dst_img, $src_file, $CONFIG['jpeg_qual']);
                    imagedestroy($src_img);
                    imagedestroy($dst_img);
                //    break;
            //}
            // Set mode of uploaded picture
            // We check that the image is valid
            $imginfo = getimagesize($src_file);
            if ($imginfo == null) {
                $ERROR = $lang_errors['resize_failed'];
                @unlink($src_file);
                return false;
            } else {
                return true;
            }
        }

[Burpee]

3.
Open File util.php

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function deleteorig()

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function vesileimaathumbit()   //watermarkthumbs
{
   global $picturetbl, $CONFIG, $lang_util_php;
   $phpself = $_SERVER['PHP_SELF'];
   $albumid = $_POST['albumid'];
   $updatetype = $_POST['updatetype'];
   $numpics = $_POST['numpics'];
   $startpic = 0;
   $startpic = $_POST['startpic'];

   $query = "SELECT * FROM $picturetbl WHERE aid = '$albumid'";
   $result = MYSQL_QUERY($query);
   $totalpics = mysql_numrows($result);

   if ($startpic == 0) {
       // 0 - numpics
       $num = $totalpics;
       // Over picture limit
       if ($totalpics > $numpics) $num = $startpic + $numpics;
   } else {
       // startpic - numpics
       $num = $startpic + $numpics;
       if ($num > $totalpics) $num = $totalpics;
   }

   $i = $startpic;
   while ($i < $num) {
       $image = $CONFIG['fullpath'] . mysql_result($result, $i, "filepath") . mysql_result($result, $i, "filename");

       if ($updatetype == 0 || $updatetype == 2) {
           $imagesize = getimagesize($image);
           if (max($imagesize[0], $imagesize[1]) > $CONFIG['picture_width'] && $CONFIG['make_intermediate'])        {
           $image = $CONFIG['fullpath'] . mysql_result($result, $i, "filepath") . $CONFIG['normal_pfx'] . mysql_result($result, $i, "filename");
                       }        else        {
           $image = $CONFIG['fullpath'] . mysql_result($result, $i, "filepath") . mysql_result($result, $i, "filename");
                       }

           if (watermark($image)) {
               print $image .' '. $lang_util_php['updated_succesfully'] . '!<br />'; //$normal .' '. $lang_util_php['updated_succesfully'] . '!<br />';
               my_flush();
           } else {
               print $lang_util_php['error_create'] . ':$image<br />'; //$lang_util_php['error_create'] . ':$normal<br />';
               my_flush();
           }
       }

       if ($updatetype == 1 || $updatetype == 2) {
           $image = $CONFIG['fullpath'] . mysql_result($result, $i, "filepath") . mysql_result($result, $i, "filename");

           if (watermark($image)) {
               print $image .' '. $lang_util_php['updated_succesfully'] . '!<br />'; //$normal .' '. $lang_util_php['updated_succesfully'] . '!<br />';
               my_flush();
           } else {
               print $lang_util_php['error_create'] . ':$image<br />'; //$lang_util_php['error_create'] . ':$normal<br />';
               my_flush();
           }
       }

       ++$i;
   }
   $startpic = $i;

   if ($startpic < $totalpics) {

       ?>
           <form action=<?php echo $phpself;
        ?> method="post">
                   <input type="hidden" name="action" value="continuewatermarks" />
                   <input type="hidden" name="numpics" value="<?php echo $numpics?>" />
                   <input type="hidden" name="startpic" value="<?php echo $startpic?>" />
                   <input type="hidden" name="updatetype" value="<?php echo $updatetype?>" />
           <input type="hidden" name="albumid" value="<?php echo $albumid?>" />
           <input type="submit" value="<?php print $lang_util_php['continue'];
        ?>" class="submit" /></form>
                   <?php
    }
}  



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updatethumbs();

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   echo '<br /><a href="' . $phpself . '">' . $lang_util_php['back'] . '</a>';
} else if ($action == 'watermarks') {//tämä
   global $picturetbl, $CONFIG;
   print '<a href="' . $phpself . '">' . $lang_util_php['back'] . '</a><br />';
   print '<h2>' . $lang_util_php['watermark_wait'] . '</h2>';

   vesileimaathumbit();  //watermarkthumbs

   echo '<br /><a href="' . $phpself . '">' . $lang_util_php['back'] . '</a>';
} else if ($action == 'continuewatermarks') {//tämä
   print '<a href="' . $phpself . '">' . $lang_util_php['back'] . '</a><br />';
   print '<h2>' . $lang_util_php['watermark_wait'] . '</h2>';

   vesileimaathumbit();  //watermarkthumbs


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starttable('100%', '<input type="radio" name="action" value="title" id="title" class="nobg"
(only part of that line)

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//This is for watermarking
   starttable('100%', '<input type="radio" name="action" value="watermarks" id="watermarks" class="nobg" /><label for="watermarks" accesskey="w" class="labelradio">' . $lang_util_php['watermarks'] . '</label> (1)');
   print '
<tr><td>
' . $lang_util_php['update_what'] . ' (2):<br />
<input type="radio" name="updatetype" value="0" id="thumb" class="nobg" /><label for="thumb" accesskey="w" class="labelradio">' . $lang_util_php['watermark_normal'] . '</label><br />
<input type="radio" name="updatetype" value="1" id="resized" class="nobg" /><label for="resized" accesskey="r" class="labelradio">' . $lang_util_php['watermark_image'] . '</label><br />
<input type="radio" name="updatetype" value="2" checked="checked" id="all" class="nobg" /><label for="all" accesskey="a" class="labelradio">' . $lang_util_php['watermark_both'] . '</label><br />
' . $lang_util_php['update_number'] . '
<input type="text" name="numpics" value="' . $defpicnum . '" size="5" /><br />
' . $lang_util_php['update_option'] . '<br /><br />
</td></tr>';
   endtable();

   print '<br />';




4.
Open file config.php

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function create_form(&$data)

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// Added for allowing user to select where to add watermarks on pics...
function form_watermark($text, $name)
{
   global $CONFIG, $lang_config_php;

   $value = $CONFIG[$name];
   $bottomright_selected = ($value == 'bottomright') ? 'selected' : '';
   $bottomleft_selected = ($value == 'bottomleft') ? 'selected' : '';
   $topleftt_selected = ($value == 'topleftt') ? 'selected' : '';
   $topright_selected = ($value == 'topright') ? 'selected' : '';

   echo <<<EOT
       <tr>
           <td class="tableb">
                       $text
       </td>
       <td class="tableb" valign="top">
                       <select name="$name" class="listbox">
                               <option value="bottomright" $bottomright_selected>{$lang_config_php['wm_bottomright']}</option>
                               <option value="bottomleft" $bottomleft_selected>{$lang_config_php['wm_bottomleft']}</option>
                               <option value="topleftt" $topleftt_selected>{$lang_config_php['wm_topleftt']}</option>
                               <option value="topright" $topright_selected>{$lang_config_php['wm_topright']}</option>
                       </select>
               </td>
       </tr>

EOT;
}
// Added for allowing user to select which files to watermark...
function form_watermark2($text, $name)
{
   global $CONFIG, $lang_config_php;

   $value = $CONFIG[$name];
   $both_selected = ($value == 'both') ? 'selected' : '';
   $original_selected = ($value == 'original') ? 'selected' : '';
   $resized_selected = ($value == 'resized') ? 'selected' : '';

   echo <<<EOT
       <tr>
           <td class="tableb">
                       $text
       </td>
       <td class="tableb" valign="top">
                       <select name="$name" class="listbox">
                               <option value="both" $both_selected>{$lang_config_php['wm_both']}</option>
                               <option value="original" $original_selected>{$lang_config_php['wm_original']}</option>
                               <option value="resized" $resized_selected>{$lang_config_php['wm_resized']}</option>
                       </select>
               </td>
       </tr>

EOT;
}



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               case 10 :
                   form_number_dropdown($element[0], $element[1]);
                   break;

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die('Invalid action');

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              //Watermark place
              case 11 :
                  form_watermark($element[0], $element[1]);
                                      break;
              //Which filest to watermark
              case 12 :
                  form_watermark2($element[0], $element[1]);
                                      break;
              case 13 :
                  // do nothing
                  break;
              default: between them.

After You have done it, it should look like this (I have put couple lines befor and after those lines in this example (hoppe You got it, becouse of My poor english :?

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               // tabbed display fix
               case 10 :
                   form_number_dropdown($element[0], $element[1]);
                   break;

              //Watermark place
              case 11 :
                  form_watermark($element[0], $element[1]);
                                      break;
              //Which filest to watermark
              case 12 :
                  form_watermark2($element[0], $element[1]);
                                      break;
              case 13 :
                  // do nothing
                  break;
              default:
                   die('Invalid action');
           } // switch
       } else {
           form_label($element);


5.
Then You need to execute theese SQL commands with phpMyAdmin or Webmin, etc.

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insert into cpg11d_config (name, value) values ('enable_watermark', '1');
insert into cpg11d_config (name, value) values ('where_put_watermark', 'bottomright');
insert into cpg11d_config (name, value) values ('watermark_file', '/your/full/path/to/logo.png');
insert into cpg11d_config (name, value) values ('which_files_to_watermark', 'both');

Just to make things entirely clear for beginners:

insert into cpg11d_config (name, value) values ('enable_watermark', '1');
insert into cpg11d_config (name, value) values ('where_put_watermark', 'bottomright');
insert into cpg11d_config (name, value) values ('watermark_file', '/*******/**/*********/htdocs/gallery/watermark.png');
insert into cpg11d_config (name, value) values ('which_files_to_watermark', 'both');

the prefix highlighted in red should be edited by the user to make sure it corresponds to their gallery prefix.. latest CPG should have cpg130 as prefix.

the path to the watermark image highlighted in blue has to be the full directory path to the image and not a URL


Thats it. Now You can go to settings and set it up.
Actually You need to go there, before trying to add new pics.
You have to change 'Which file to use for watermark' to point to your own logo.png file that is used as watermark.


This should contain every modification I have made.

- Made by Sammy

[khayman]

Hey all. I've added a bit of code to allow you the option to CENTER the watermark on the image. It's not much of a contribution but... it's a contribution nonetheless!

First, make the necessary changes to the files as above.

Further changes need to be made to the following files:

Lang/english.php
include/picmgmt.inc.php
config.php

As above, remember to make backups of all the files you are editing!

1. Open file Lang/english.php

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'wm_topright' => 'Up right',


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'wm_centered' => 'Centered',


2. Open file include/picmgmt.inc.php

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} else if ($pos == "bottomright") {
$src_x = $srcWidth - ($logoW + 5);
$src_y = $srcHeight - ($logoH + 5);


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} else if ($pos == "centered") {
$src_x = ($srcWidth/2) - ($logoW/2);
$src_y = ($srcHeight/2) - ($logoH/2);


3. Open file config.php

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$bottomleft_selected = ($value == 'bottomleft') ? 'selected' : '';


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$centered_selected = ($value == 'centered') ? 'selected' : '';


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<option value="bottomleft" $bottomleft_selected>{$lang_config_php['wm_bottomleft']}</option>


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<option value="centered" $centered_selected>{$lang_config_php['wm_centered']}</option>


Note: the above two lines place the CENTERED option on the configuration page in alphabetical order, you can put it in any order within the

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<select name="$name" class="listbox">

section of the code, as long as it is after the above code and before the

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</select>

line of code.

That's it! All you have to do now is upload your pages and login as an administrator and update your configuration through the config button.

[rhydewithdis]

First off - thanks for putting this together... maybe someone can assist with this error message I get after when trying to use the watermark feature (everything else worked fine):

PHP running on your server does not support the GD image library, check with your webhost if ImageMagick is installed

[Joachim Müller]

check phpinfo to see if you actually have GD (refer to the FAQ for details).

GauGau

[tanfwc]

is there any way to update all images after changing the watermark and the position after a few time?

[Joachim Müller]

Watermarking is ireversible, that's why this mod is called "permament watermarking". I'm not sure what you mean though.

GauGau

[tanfwc]

Watermarking is ireversible, that's why this mod is called "permament watermarking". I'm not sure what you mean though.

GauGau

Thank you for replying. What i mean is that if i have apply Watermark A and after a while i decided to change to Watermark B, will the picture that has watermark A able to change to watermark B?

[Joachim Müller]

no, you can only add watermark B to the already watermarked pic afaik. It's strongly recommended you do watermarking on your client before uploading, will bring much better results and less load on the server. There are some good watermarking apps like PictureShark available for free.

GauGau

[tanfwc]

no, you can only add watermark B to the already watermarked pic afaik. It's strongly recommended you do watermarking on your client before uploading, will bring much better results and less load on the server. There are some good watermarking apps like PictureShark available for free.

GauGau

Thank you for pointing out such a good software

[No0dle]

How do you do step 5?

[tanfwc]

How do you do step 5?

You have to run the sql query using phpMyAdmin

[No0dle]

Well i get that but how do you do that with phpAdmin what do you have to do there in the admin

[tanfwc]

why i apply the hack and the images come out like that?

http://www.tanfwc.com/beta/albums/userpics/10001/Shannon%20on%20Sandy%232.jpg

i am using a transparent images and the watermark is in PNG format...strange...

[nyt84]

Thanks for the watermark hack..i love it.
For those who want a demo look of the hack, take a look at my gallery
http://gallery.greensg.org

The hack only apply to resized pics only.


Cheers!!

[tanfwc]

why i apply the hack and the images come out like that?

http://www.tanfwc.com/beta/albums/userpics/10001/Shannon%20on%20Sandy%232.jpg

i am using a transparent images and the watermark is in PNG format...strange...

anyone?

[DefenceTalk.com]

Excellent mod. Thank you!

Anyway to apply the watermark on existing pictures as well as those that are uploaded after this mod was added?

thanks!

[tanfwc]

Excellent mod. Thank you!

Anyway to apply the watermark on existing pictures as well as those that are uploaded after this mod was added?

thanks!

go to Admin Tools and update those images with watermark...

[WreckRman2]

Thanks for the watermark hack..i love it.
For those who want a demo look of the hack, take a look at my gallery
http://gallery.greensg.org

The hack only apply to resized pics only.


Cheers!!

Hey nyt84, Very nice watermark... I'm no graphic artist would you make me a watermark for a few dollars?

[tanfwc]

Can this work with the lastest CPG 1.3.1?