Very useful!
I use it to store PDFs that I convert into transparent pngs that I can insert in NotesPlus.
The only flaw is that the, background for transparent PNG’s should not be black, or monochromatic, it should be a grey checkerboard pattern IMHO. Right now a png with black figures and transparency is displayed as an all black rectangle.
Ramón Manuel about
Convert.r - the simple and elegant way to convert to PDF & Image.