Novarata Wiki: Forumwatermarks ...

The scripts on this page should work on any linux distro, and may work on OS X.
The code below should be inserted into a text document with the name given (or any name you like) and made executable (chmod +x filename). The file can then be called locally #/path/to/filename or added to your /usr/local/bin for universal access. You should change YOUR-WATERMARK-TEXT-HERE to your desired watermark phrase.

All but one of these are destructive scripts, in that the original file will be overwritten. IMHO, you should run these scripts on copies of your original images so you retain an original un-watermarked copy. The copies can be deleted once they're uploaded.

Non Destructive Directory Method
Destructive Directory Method
32-pixel single file watermarker
16-pixel single file watermarker

This would be for adding a text watermark to all pix in a directory. It will not destroy the originals, but output the changed pix with a _wm added before the suffix.
#!/bin/bash ########################################### # NAME: wm-new # AUTHOR: Linerd (http://tuxtweaks.com), Copyright 2009 # LICENSE: Creative Commons Attribution - Share Alike 3.0 http://creativecommons.org/licenses/by-sa/3.0/ # You are free to use and/or modify this script. If you choose to distribute this script, with or # without changes, you must attribute credit to the author listed above. # REQUIRES: ImageMagick, coreutils # VERSION: 1.0 # DESCRIPTION: A script to add a watermark to all images in a directory. # Original images will be retained and new watermarked images will be created. # FOUND: http://tuxtweaks.com/2009/08/batch-watermark-images-in-linux/ # # # VERSION: 1.1 # AUTHOR: Nalioth # DESCRIPTION: Changed the script to use 'convert' and apply textual markings instead of an image overlay # EXAMPLE: http://www.novarata.net/abrams/vz58/vz58_1042.JPG ########################################### # Find all image files in current directory and watermark. file -i * | grep image | awk -F':' '{ print $1 }' | while read IMAGE do echo Watermarking $IMAGE NAME=`echo $IMAGE | cut -f1 -d.` EXT=`echo $IMAGE | cut -f2 -d.` convert "$IMAGE" -font Times-Roman -pointsize 32 -draw "gravity southeast fill black text 0,12 'YOUR-WATERMARK-TEXT-HERE' fill white text 1,11 'YOUR-WATERMARK-TEXT-HERE'" "${NAME}_wm.${EXT}" done exit 0

This is the same script as above, save it doesn't make copies, but overwrites the existing files with the watermarked ones. This would best be used on a folder full of copied images – this way you keep your originals “original”, and can delete the copy folder after you've uploaded the watermarked images
#!/bin/bash ########################################### # NAME: wn-ow # AUTHOR: Linerd (http://tuxtweaks.com), Copyright 2009 # LICENSE: Creative Commons Attribution - Share Alike 3.0 http://creativecommons.org/licenses/by-sa/3.0/ # You are free to use and/or modify this script. If you choose to distribute this script, with or # without changes, you must attribute credit to the author listed above. # REQUIRES: ImageMagick, coreutils # VERSION: 1.0 # DESCRIPTION: A script to add a watermark and overwrite all images in a directory. # FOUND: http://tuxtweaks.com/2009/08/batch-watermark-images-in-linux/ # # VERSION: 1.1 # AUTHOR: Nalioth # DESCRIPTION: Changed the script to use 'convert' and apply textual markings instead of an image overlay # # This script will watermark all of the images in a directory. Warning! This will overwrite the files. # EXAMPLE: http://www.novarata.net/abrams/vz58/vz58_1042.JPG ########################################### # Warning echo -e "This will overwrite all of the images in this directory."\\n"Are you sure you want to continue? {Y/n}" read REPLY if [ "$REPLY" != "n" ] && [ "$REPLY" != "N" ] then file -i * | grep image | awk -F':' '{ print $1 }' | while read IMAGE do echo Watermarking $IMAGE convert "$IMAGE" -font Times-Roman -pointsize 32 -draw "gravity southeast fill black text 0,12 'YOUR-WATERMARK-TEXT-HERE' fill white text 1,11 'YOUR-WATERMARK-TEXT-HERE'" "$IMAGE" done else echo exiting exit 0 fi exit 0

This is script for use with a single file. It will create a watermark using a 32-pixel font size. This is probably not suitable for images smaller than 600 pixels wide.
#!/bin/bash ############################################################################### # NAME: forum-watermark-32 # AUTHOR: Nalioth (http://novarata.net), Copyright 2011 # LICENSE: Creative Commons Attribution - Share Alike 3.0 http://creativecommons.org/licenses/by-sa/3.0/ # You are free to use and/or modify this script. If you choose to distribute this script, with or # without changes, you must attribute credit to the author listed above. # REQUIRES: ImageMagick, coreutils # VERSION: 1.0 # DESCRIPTION: This script will watermark a single image file with a 32-pixel font. # # WARNING! It will overwrite the existing file!! # # EXAMPLE: http://www.novarata.net/abrams/vz58/vz58_1042.JPG ############################################################################### convert $1 -font Times-Roman -pointsize 32 -draw "gravity southeast fill black text 0,12 'YOUR-WATERMARK-TEXT-HERE' fill white text 1,11 'YOUR-WATERMARK-TEXT-HERE'" $1

This is script for use with a single file. It will create a watermark using a 16-pixel font size.
#!/bin/bash ############################################################################### # NAME: forum-watermark-16 # AUTHOR: Nalioth (http://novarata.net), Copyright 2011 # LICENSE: Creative Commons Attribution - Share Alike 3.0 http://creativecommons.org/licenses/by-sa/3.0/ # You are free to use and/or modify this script. If you choose to distribute this script, with or # without changes, you must attribute credit to the author listed above. # REQUIRES: ImageMagick, coreutils # VERSION: 1.0 # DESCRIPTION: This script will watermark a single image file with a 16-pixel font. # # WARNING! It will overwrite the existing file!! # # EXAMPLE: http://www.novarata.net/abrams/vz58/vz58_1042.JPG ############################################################################### convert $1 -font Times-Roman -pointsize 16 -draw "gravity southeast fill black text 0,12 'YOUR-WATERMARK-TEXT-HERE' fill white text 1,11 'YOUR-WATERMARK-TEXT-HERE'" $1