CapyPDF 1.8.0 released

I have just released CapyPDF 1.8. It's mostly minor fixes and tweaks but there are two notable things. The first one is that CapyPDF now supports variable axis fonts. The other one is that CapyPDF will now produce PDF version 2.0 files instead of 1.7 by default. This might seem like a big leap but really isn't. PDF 2.0 is pretty much the same as 1.7, just with documentation updates and deprecating…