[cups] Can't detect file type / Not a PDF file

[Johannes Meixner]

Hello,

On May 2 11:29 Henrik Morsing wrote (excerpt):
> CUPS has abandoned raw queues

In CUPS raw queues are set to be "deprecated" but
"Raw queues will continue to work in CUPS 2.2.x/2.3.x"
see
https://ftp.pwg.org/pub/pwg/liaison/openprinting/presentations/cups-plenary-april-19.pdf
there on page 20

FYI: The above is linked as "CUPS Plenary" in
https://www.pwg.org/chair/meeting-info/april-2019-lexington.html


Kind Regards
Johannes Meixner
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