Yes, it does. After clicking the “OSD” option on the left column of the web, the page of OSD will be shown as follows.

When using the OSD function, please add a canvas first, and the resolution of the canvas can be 3840×2160, 1920×1080, 1280×720, or 720×1280. ZowieBox supports adding up to four canvases.
Then you can add pictures, texts and modify element information.
For more information please visit the User Manual for ZowieBox.
