On Wed, 2022-06-22 at 14:01 -0300, George N. White III wrote:
AirPrint was introduced in 2011 to support iPads.
https://openprinting.github.io/driverless/01-standards-and-their-pdls/
summarizes the differences in the various Driverless Printing
implementations. PDF is supported across the board, but there are
several raster formats and also PDFm which is viewable with PDF
viewers, but tailored for the capabilities of specific printer
models.
I have a HP printer in that boat. It proudly proclaims direct PDF
printing (send it a PDF file, or plug a USB into the front with a PDF
on it). But after a lot of digging around you find that it only
supports a special PDF created by their driver program, no other PDF
files are supported.
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