Bash script to batch watermark photos using ImageMagick.
Place the script and watermark in the folder with the images or change the IMAGES_DIR and WATERMARK paths to point to the script and the desired file respectively.
Edit the watermark.svg file or use another image (remember to change the WATERMARK path).
Adjust PERCENT_DIMENSION and PERCENT_OFFSET if necessary. 1 means the watermark uses 100% of the main size of the photo.
Also, if needed, change the .jpg extension in the for loop to whatever you need.