nixCraft

#1 (**permalink**) 12-20-2005, 02:54 AM

Hai

I got some information from your tutorial about creating image thumbnails can you explain how can I add custom watermarks to my images from shell prompt/command prompt

One more point I would like to put water mark at bottom of each image?

Thanks a lot in advanced
You guys rules

rockdalinux · #2 (**permalink**) 12-20-2005, 12:10 PM

composite command can be use to setup watermark. As name suggest composite composites (combine

images to create new images including watermark effect from shell prompt/command or even shell scripts

Syntax:

Code:

composite -watermark %% watermark.gif original.jpg newimagewithwatermark.png

Replace %% with percent brightness of a watermark you want. Here is simple example:

Code:

composite -watermark 100% wm.png file.png abc.png

Read man page of composite for more information

tom · #3 (**permalink**) 12-20-2005, 11:53 PM

I guess one can write a script to do automation:

Code:

for i in $(*.jpg)
do
  composite -watermark 25% wm.gif $i wm-$i
done

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nixCraft

How can I add custom watermarks to images from shell prompt?

How can I add custom watermarks to images from shell prompt?

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