On 2018-12-28 16:19:54 deloptes wrote:
> 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
>
	Nope.  There's nothing wrong with my CUPS setup.  I can print PDF documents 
from the command line with lpr, and I can print them from something called 
Document Viewer (I think it's a Gnome app).  Neither of these methods 
produces any errors, but they do produce printouts. :-)

Leslie