Convert PNG and Visio files to draw.io XML

[AngusParsonson]

Hi there,

I am trying to use draw.io in embed mode. The iframe takes an XML parameter to preload the editor with a diagram. I want to be able to load PNG and Visio files, so I need some way to convert these file types to valid draw.io mxgraph XML programmatically.

Has anyone encountered this before, or have any ideas about how I could solve it?

Thanks.