[NTG-context] LMTX generates PDFs with non-working fonts on real printers

[Leah Neukirchen]

Leah Neukirchen via ntg-context <ntg-context at ntg.nl> writes:

> Hi,
>
> I use LuaMetaTeX 2.10 20220918 + ConTeXt LMTX 2022.09.11.
>
> Here's a tiny test document, I disabled PDF compression but it also
> doesn't work with the default settings.
>
> \setupbackend[level=0,compresslevel=0]
> \starttext
> Just a line of text.
> \stoptext
>
> When I print this "directly" (i.e. sending the raw PDF to the printer)
> on a Ricoh MP3053 or on a Samsung CLP-680DW, I just get an empty page.
>
> The PDFs render fine on every PDF reader I could find.

On Acrobat DC on macOS, there is a visible difference between the two files:

-------------- next part --------------
A non-text attachment was scrubbed...
Name: foo.mkxl.png
Type: image/png
Size: 10089 bytes
Desc: not available
URL: <http://mailman.ntg.nl/pipermail/ntg-context/attachments/20221003/223e47cb/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: foo.mkiv.png
Type: image/png
Size: 9734 bytes
Desc: not available
URL: <http://mailman.ntg.nl/pipermail/ntg-context/attachments/20221003/223e47cb/attachment-0003.png>
-------------- next part --------------

Note that the 'a' and 'l' look quite different.

But I couldn't reproduce it with MuPDF for example.

-- 
Leah Neukirchen  <leah at vuxu.org>  https://leahneukirchen.org