Add watermark to media

Applies a text or image watermark on top of an existing image, GIF, or video using the watermark.py library — a Python wrapper around FFmpeg. The agent accepts a source file and a watermark (either an image file or a text string), then configures placement, size, and opacity before writing the output.

Users can control:

• Position — top-left, top-right, bottom-left, bottom-right, or center
• Opacity — how transparent the watermark appears over the base media
• Scale — how large the watermark renders relative to the source

Install with pip install watermark.py and ensure ffmpeg is available on the system. Then hand the agent a file path and describe where and how to stamp it.