Font size far too small and can't be increased?

[cab36647706]

Does anyone know how to fix this, if there is a fix? The "zoom" feature is completely disabled, and despite the fact that I have selected "ultra large" for the font size, it is still tiny! I never have issues reading small font but this is ridiculous. I can't believe there isn't a zoom capability on neither my ipad nor my laptop. Any ideas, Adobe?

[Nanaky]

If the zoom not work its a prolbem of the formationg of the eBook. In this way you can nothing change.