X2GoClient for Windows should include a standalone PDF viewer, just like it includes a standalone X Server

(Copied and updated from https://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=740)

Currently, X2GoClient offers the free choice of X-Servers to be used with it, but ships with VcXsrv as default and has some "sane" default settings configured for it, too, so X2GoClient works out of the box. Whoever wishes to deviate from that path, is, however, free to do so - X2GoClient has an option to specify a custom X-Server of the user's choice.

I would like to take a similar approach for printing. At present, no default PDF viewer is shipped with X2GoClient, and the user has to fiddle with whichever PDF viewer they choose to get the parameters right.

SumatraPDF is a free (F/LOSS) PDF viewer that offers a portable version, i.e. it is a single, self-contained executable that doesn't require any installation.

It also supports a wide range of command line parameters so it is ideal for scripted background use (like "open PDF, print to default printer, close application").

Quoting from http://www.sumatrapdfreader.org/manual.html:

Printing related cmd-line arguments:

-print-to-default $file.pdf prints a PDF file on a default printer

-print-to $printer_name $file.pdf prints a PDF on a given printer

-print-dialog $file.pdf opens a PDF file and shows a print dialog to select printer and printing options

-exit-on-print when -print-to-default or -print-to is used, will exit after printing

So, basically, "-exit-on-print -print-to-default" is all we'd need for basic functionality. If we want to do "enumPrinters" within X2GoClient,"-exit-on-print -print-to $printer" will also already work.

If we want to leave printer selection to SumatraPDF, "-print-dialog" has to be used, and we'd probably have to submit a patch to the SumatraPDF project that "-exit-on-print" be made to work with "-print-dialog" as well, as the current description seems to indicate that this is not the case.

Thus, I would ask that some helpful soul steps up and please

a) includes SumatraPDF's standalone executable in the Windows X2GoClient package b) adds the proper code to X2GoClient so client-side printing defaults to using SumatraPDF in the X2Go program directory unless the user has created a custom configuration.

The rationale for this bug is that adding this feature would increase usability of X2GoClient just as shipping a default X-Server does.

Portable version of SumatraPDF can be found here: https://www.sumatrapdfreader.org/dl/rel/3.5.2/SumatraPDF-3.5.2.zip Sources are here: https://github.com/sumatrapdfreader/sumatrapdf