Uprez
Edit background image / video
We can change the background image or video from Uprez editor by selecting the shown image/video and using the editing panel to select another one.

We can change the background image or video from Uprez editor by selecting the shown image/video and using the editing panel to select another one.
We can now set HTML document as Editable with Uprez as we do with inDesign Editable option. Provide options to change elements from an HTML document (Txt, video, images and links - URL and go to page) which are marked as editable in the uploaded as ZIP sources. You can find a tutorial and sample of editable component here