[MikeWV]

I wasn't sure what you were looking for, RbnJrg. So I attached a sample epub and two SVGs in a zipped folder.

The epub has SVG images of tables, charts and blocks of formulas.

The two SVGs in the zipped folder are the two files that I referred to in my post yesterday in which I tried converting to paths. I converted the chart in one step using Path/Object to Path. I used Path/Object to Path to convert each text string in the table individually to a path. I included the PDFs from which the SVGs were created in Inkscape, too.

The files beginning with a3f01, a3f02 and a3t01 are the SVGs with emedded fonts.

"Replace PDF fonts with closest-named installed fonts" was left unchecked when I opened my PDFs in Inkscape. I found that by leaving this unchecked, my embedded fonts were recognized by Kobo and ADE when opened as epub. When I left that option checked, no program or device recognized the embedded fonts.