🚀 go-pugleaf

On Fri, 23 Jan 2009 10:12:39 +0000, The Natural Philosopher wrote:


> But what is HPJIS, and foomatic, and where does ghostscript come in?

AFAIK, these are old style stuff for lpr, lprng, etc. If you have cups,
then you shouldn't need to install these.

Ghostscript does the ripping, aka converts the print commands
into code that the printer understands. AFAIK, foomatic provides
pre and post processing of the input/output


> 
> I suspect my problems are with ghostscript actually,

Unless it is something bleeding edge, highly nlikely. Ghostscript has been
around for decades and has never given me trouble with watermarks, etc

> So I upgraded from
> the latest stable debian to the bleeding edge testing sources, but it
> still has an issue (transparent background images in PDFs do not have
> the transparency respected)..that is something that looks like a couple
> of days worth at the source code level would fix..but where to first be
> sure that is the issue, and secondly identify where images are handled
> in Ghostscript. Its HUGE.
> 
> Anyone care to point me in the right direction?

Have you checked that the postscript code being fed into the front end
actually has the correct Postscript in it. More likely, the application
printing the pdf isn't creating the postscript properly.

although pdfs are supposed to be postscript internally. Differing versions
of postscript?