I want to send out a postcard to several thousand people with a specific image on each just for the recipient. I have designed the common background in GIMP and have my series of specific images.
In GIMP (or a similar program), is there a way to vary the graphics (similar to Mail Merge) in each by adding in the specific picture?
My other options currently are to put both images into Word MailMerge or create some code in C# that combines both of them into one image and iterates through the images, but I'm curious if there's a simpler and/or ready-made solution?