[Scribus] Background with opacity

[Peter Linnell]

On Tuesday 06 April 2004 12:45 am, Owen wrote:
> On Mon, 05 Apr 2004 16:34:30 -0400
>
> "Danny L. Brow" <fms at ca.istop.com> wrote:
> > I am trying to insert a background graphic with about 10% opacity but
> > when I do the graphic is normal with 100% opacity, that's what happens
> > with a GIF format image, with PNG I get 100% opacity when the image is
> > anything more then 50% opacity but when it's less even like 45% I get no
> > image, just a blank graphic box.
>
> I created a document with 4 png images. 100%, 75%, 50% and 25% opacity (in
> Gimp)
>
I did the same with PS 6, plus adding Scribus native drawings with

10%,  25%. 49%, 51%

> The images showed their 'opacity' in the workong document, but
>
> Export->pdf	All images same opacity, 100% )(Xpdf 3)

Display error in Xpdf 3.00
Acro 5.0.8 works fine
GSview 4.6.2 + GS 8.14 works fine
Kghostview 3.2.1 works fine

> Save As->SVG    Inkscape couldn't read the images on reopen

Inkscape Bug 
 Sodipodi, Illustrator 10 and Karbon 14 open them ok

> Save As->EPS    When opened in the Gimp, 100% and 75% showed but the 50%
> and 25% images were not resolved.
>
> All of this was of curiousity value as I am not sure what it all means.
> Anyway, it sort of confirms your results
>
>
> Owen

Note: transparency is really not a part of the PS3 spec, although some PS3 
interpreters can handle it. Transparency in PDF is only supported in PDF 1.4 
and PDF  1.4 capable viewers.

Still testing...

Peter