[Scribus] scribus and pdf export

[Peter Linnell]

On Monday 03 May 2004 08:40 am, Franky wrote:
> Peter Linnell wrote:
> > On Mon, 2004-05-03 at 08:14, Franky wrote:
> >>Craig Bradney wrote:
> >>>On Mon, 2004-05-03 at 13:08, Franky wrote:
> >>>>Hi all,
> >>>>
> >>>>I've come across some pdf issues with scribus (and no, it's not xpdf or
> >>>>acrobat that has the problem):
> >>>>
> >>>>- when exporting a doc to pdf with png images in it that have
> >>>>transparant background, the background get's set to black on the pdf
> >>>>file. The print-to-file generated postscript file shows this correctly.
> >>>
> >>>Make sure you have the 1.4 transparency feature turned on in Display and
> >>>exporting with the Acro 5.0 (PDF 1.4) setting. I use PNGs with
> >>>transparencies a lot and find no issues.
> >>
> >>that's a weird place to put a pdf setting ... But anyway, I tried it and
> >>it made no difference whatsoever: xpdf always shows a black background.
> >>Acrobat reader then always shows it correctly (with or without this
> >>setting).
> >>
> >>for the other stuff: I'll try to install a cvs version ...
> >>
> >>Franky
> >>
> >>______________________________________________________________________
> >
> > Snipping from the unpublished 1.2 docs:
> >
> >
> > One of the challenges with PDF and EPS viewers on Linux, is that Scribus
> > creates high end PS level 3 and PDF 1.4, with capabilities beyond most
> > of the open source viewers. Some of these features are only supported in
> > commercial pre-press or DTP tools. Two plus years of working with
> > Scribus has led me to the current conclusion that the following three
> > viewers are the most reliable at displaying PS/EPS/PDF created by
> > Scribus:
> >
> >       * Acrobat Reader 5.0.8+ for Linux - The best and sometimes the
> >         only choice for PDF viewing. Detailed notes and hints: Hidden
> >         Features of Acro Reader.
> >       * GSview 4.6+ - with the latest version of Ghostscript available.
> >         This combination is your best choice for viewing EPS files, PS
> >         files and most PDFs. In addition, GSview has many other very
> >         useful capabilities with add-ons like pstoedit and epstool. For
> >         more detailed notes and hints: GSview and Scribus. I consider it
> >         an essential tool for DTP on Linux.
> >       * Xpdf 3.00+ - This updated PDF viewer has a new rendering engine
> >         and is capable of viewing PDF 1.5 files.
> > If any other PDF or EPS viewer you choose cannot display PDFs from
> > Scribus, but they do view properly in Acrobat Reader, file a bug with
> > the upstream author. In virtually all cases I have tested, it is a
> > limitation of the viewing application. Scribus PDFs are tested daily
> > with specialist pre-press software to validate their adherence to the
> > published PDF specifications.
> > <endsip>
> >
> > Note above I mentioned Xpdf 3.00+, as it has a new rendering engine
> > which is capable of Displaying the latest 1.5 PDF. Version 2.0x,
> > sometimes has difficulties with certain kinds of images.
>
> ah, but I thought scribus generated 1.4 PDF files, and xpdf 2.0x
> *should* be able to display those. Anyway, I tried the latest xpdf (3.0)
> version and it's the same result: always black background.
> But why has the "1.4 transparency feature" no effect then: it's always
> transparant in acrobat reader, and always black background in xpdf ...
>
> Franky

Files a bug with the author.  It is a bug in Xpdf.

Cheers,
Peter