Merge Images from image control and pen input control

[TrulsB]

Several customers has asked for signing directly on a PDF or on a image in Powerapps.  Example: using the image Control to display a image (eg of a form) and add pen input result directly on top of the image, and then merge and save this as one image. 

Please see

https://powerusers.microsoft.com/t5/Building-Power-Apps/Photo-Image-and-Pen-Control-input/m-p/686866