[NTG-context] LuaTeX and PDF.js

Vedran Miletić vedran at miletic.net
Thu Jan 7 22:10:04 CET 2021


Hello,

I compared latest ConTeXt standalone (LuaTeX 2.08) against TeX Live 2020 
(LuaTeX 1.12). The produced PDFs are:

https://miletic.net/lipsum-112.pdf
https://miletic.net/lipsum-208.pdf

Viewing them with Evince (and I assume Adobe Reader, I don't have it at 
hand to test) shows only minor differences in (horizontal) character 
spacing, which I would expect; the text looks reasonably good either 
way. However, viewing them with PDF.js shows a large difference:

https://miletic.net/lipsum-pdfjs-112.png
https://miletic.net/lipsum-pdfjs-208.png

As you can observe, b, m, n, p, and r (and possibly others) are moved 
slightly above other letters. Is this the expected behavior? If not, is 
this an issue with the way PDF.js is displaying the PDF or the way 
LuaTeX is producing it?

Thanks in advance.

Regards,
Vedran Miletić


-- 
Vedran Miletić
vedran.miletic.net



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