[NTG-context] Strange behavior concerning pdf-output of externalfigures

Rudolf Bahr quasi at quasi.de
Mon Apr 29 11:41:47 CEST 2019


On Mon, Apr 29, 2019 at 10:52:59AM +0200, Bahr Rudolf wrote:
> On Sun, Apr 28, 2019 at 11:12:43PM +0200, Hans Hagen wrote:
> > On 4/28/2019 8:10 PM, Rudolf Bahr wrote:
> > > 
> > > Dear list,
> > > 
> > > I'm getting unexplainable artefacts in the pdf-output.
> > > 
> > > My MWE is:
> > > 
> > > ------------------
> > > \starttext
> > > 
> > > \externalfigure
> > >      [input.png]
> > >      [width=100mm]
> > > 
> > > \stoptext
> > > ------------------
> > > 
> > > I append the output "MWE.pdf" and the input-figure "input.png" for comparison.
> > > 
> > > I'm experiencing the artefacts with some figures which are all several years old.
> > > Until now it never happened in conTeXt programs. Because I installed a new OS
> > > (LinuxMint) on my workstation at the same time I tried 3 pdfviewers (okular,
> > > evince, xpdf) all with the same result.
> > 
> > different inclusion code
> > 
> > > I'm using LuaMetaTeX, Version 2.00.0,
> > > ConTeXt  ver: 2019.04.13 17:25 MKIV beta  fmt: 2019.4.15
> > > 
> > > Please, do you have any idea what could be the reason?
> > no problems here .. can you update?
> > 
> > Hans
> 
> 
> Sorry, but even after updating to
> ConTeXt  ver: 2019.04.29 09:02 MKIV beta  fmt: 2019.4.29
> I'm experiencing the same artefacts as before.
> 
> Please, what means "different inclusion code"?
> 


Interesting news!
After having changed the png-Format of the external figure to ".tiff"-Format by
gimp2.10 the artefacts have gone!

Rudolf


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