Re: PDF Viewer does not have continuous scrolling

[Svetlana Tkachenko]

Dear Riccardo, 

Thanks a lot for your details about functional difference between
ghostscript and the xpdf/poppler PDF libraries. I appreciate it - I
probably wouldn't've figured it out if I didn't ask. I think text
selection is indeed useful for me to be able to take notes out of text
in the PDF documents so I will try to pursue the xpdf/poppler apps from
here.

Hopefully we figure out how to compile PopplerKit so that I can get
Vindaloo running. I will ask at the distribution channels and let you
know if I get enough help there.

Svetlana

Riccardo Mottola <address@hidden> wrote:
> Hi,
> 
> 
> On 06/11/2016 21:22, Svetlana Tkachenko wrote:
> > I don't know where ViewPDF currently is hosted and if somebody maintains
> >> it at all - Is it another name for the old Vindaloo viewer?
> >> I could trace that to:
> >> http://gna.org/projects/gsimageapps <http://gna.org/projects/gsimageapps>
> >>
> >> Based on poppler.. it looks another piece of GS software that is....
> >> bitrotting
> > Is being based on poppler bad? Is this software bad in its design?
> 
> Nothing bad being based on poppler.. I don't know the design of that 
> program so I can't tell.
> Poppler or xpdf can give at least some PDF functionality, while for 
> ghostscript, like used in GSPdf, each page is just an image, there won't 
> be stuff like search and I guess it will be always slower, but the 
> rendering quality is quite high.
> Different approaches.
> 
> The discussion of xpdf vs poppler then goes beyond this thread I guess.
> 
> >
> > I tried to compile PoppletKit for Vindaloo, and it gives me this error
> > even though I already installed libpoppler-dev and libpopplerkit0:
> >
> > Making all for subproject bindings...
> > make[3]: *** No rule to make target 'obj/bindings.obj/poppler.c.o',
> > needed by 'obj/subproject.o'.  Stop.
> > /usr/share/GNUstep/Makefiles/Instance/subproject.make:45: recipe for
> > target 'internal-subproject-all_' failed
> > make[2]: *** [internal-subproject-all_] Error 2
> > /usr/share/GNUstep/Makefiles/Master/rules.make:311: recipe for target
> > 'bindings.all.subproject.variables' failed
> > make[1]: *** [bindings.all.subproject.variables] Error 2
> > /usr/share/GNUstep/Makefiles/Master/rules.make:311: recipe for target
> > 'PopplerKit.all.framework.variables' failed
> > make: *** [PopplerKit.all.framework.variables] Error 2
> 
> Sorry I don't know, never built that software myself.
> 
> > Is it useful for me to try GSPdf and edit it to add continuous scrolling
> > there?
> >
> > What is a good starting point for getting continuous scrolling somehow
> > eventually?
> 
> I can't think of an easy way of adding it in GSPdf. THink of GSPdf like 
> an image viewer... one image after teh other, just that the images are 
> your pages rendered to a /tmp
> 
> Riccardo