J Leslie Turriff wrote:

> I don't often print PDF documents, but recently when I have tried to do so
> I have been stymied when KPDF told me that my document needs conversion. 
> It also says something about using a non-CUPS print server, which is not
> my case.
> I have attached screen shots of the relevant message dialogs that KPDF
> produces. �When I click through these, most of the time KPDF just
> disappears, but sometimes I see the third dialog first. �I can find no
> information on what it's really wanting or trying to do, so I have no clue
> as to which MIME type to choose. �My understanding is that somewhat
> recently, Linux has switched from printing PDFs directly to converting
> them to PostScript; perhaps that has something to do with this?
> What is the proper way to navigate these dialogs?

Hi, it looks like your (print) system is not configured properly. Usually
printer would print in post script or anything would be converted by the
cups server into language that your printer understands:
Adobe developed PostScript [1], while HP developed PCL [2], other use one or
both or provide their own solutions.

Basically your system (cups) has to translate whatever document in something
supported by the printer. It looks like you have to configure your cups
server to provide support for printing PDF documents. (there are different
filters and settings to do this) - perhaps look at the driver
used/configured for your printer and if needed install additional packages
to support the conversion.

[1] https://www.adobe.com/products/postscript.html
[2] https://en.wikipedia.org/wiki/Printer_Command_Language

regards