[Printing-architecture] The Common Printing Dialog and PDF as standard print job format for Qt/KDE applications

Klaus Singvogel kssingvo at suse.de
Wed Jun 4 08:41:00 PDT 2008

sorry for delay, but our next product is upcoming, and sometimes time
is getting short at the moment at my side. :-)

I noticed that you couldn't fully dispel all my arguments, and
therefore I think you caugth the issues.

Still I've some comments to your last e-mail...

Thomas Zander wrote:
> The usage of references means that it you are right that it is possible to 
> have the first page reference an object at the end of the document, but thats 
> just not how pdf exporters are written.

But the PDF-1.7 reference from Adobe is written so:

It could be viewed only (and only with acroread) after the file was
completely downloaded.

> > But most OpenSource programs (like xpdf and clones) support only up to
> > PDF-1.4.
> >
> > Therefore I'm asking, will be a PDF limitation made for Linux printing?
> On screen PDF viewers are not really relevant here, the support of the 
> standard in the printer is.

Sorry, but how is the printout on non-brandnew or non-PDF-able printers
Isn't there a conversion to older PDF versions or to a printer
specific rasterization necessary?
Which tool do you think is used for doing so, if not xpdf?

> But more to the point, newer versions tend to only add multi-media versions 
> (like 3D stuff) which obviously is not really relevant.

What about the JPEG2000 support (PDF-1.5)? I doubt that it is
multi-media related, and having doubts regarding "non relevant
feature" classification either.

What about the layering? I got bugzilla entries where the layering in
some newer PDF versions produced wrong printouts (different then in
viewer). I.e. https://bugzilla.novell.com/show_bug.cgi?id=377878

A technique, which was introduced with PDF-1.6, I think.

> On another note; KDE and poppler are working hard on getting that support up; 
> which is the obvious correct solution, again IMO.

I agree. But I heard about this rumor quiet some time now, and got
doubts that it will ever be done.

Klaus Singvogel  -  Maxfeldstr. 5  -  90409 Nuernberg  -  Germany
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