With very high resolution screens (also known as 4K screens), JSesh display is very small, almost unreadable.
It should be fixed in the next, upcoming version of JSesh.
When using export as pdf, some latin text (accented text mainly) does not appear correctly. The problem does not show with quick pdf export or copy/paste (but in fact, the text is rendered as drawing in those cases, so it's not that significant.)
I'll try to see if it's a problem with Itext or wit...
MdC code like m##//
won't render correctly in PDF output, with "gray" shading (you should get a shaded owl, and you get a gray square).
This code is made with a owl sign, with a shading sign from the "shading symbol" menu over it.
The problem is that in the PDF output, I avoid transparency (...