Ffmpeg adding image watermark to other images

Question

I am trying to add watermark to multiple images. When I add to single image I can complete the work correctly but when I try multiple ones, command prompt doesn't respond and return any error.

what I try is:

for f in *.png; do ffmpeg -i "$f" -i watermark.png -filter_complex "overlay=10:10" "${f/%.png/-v.png}”; 

Answer 1

• You have a ” so-called smart quote infested in your command. Use normal " quotes.
• The done is missing.

Try this:

for f in *.png; do ffmpeg -i "$f" -i watermark.png -filter_complex "overlay=10:10" "${f/%.png/-v.png}"; done