[NTG-context] [ pdf images upside down in firefox ]

[NTG-context] [ pdf images upside down in firefox ]

[vm via ntg-context]

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This is most likely an issue with firefox, but i noticed that when i 
create a file with z serie of images, the pdf shows correct in my local 
gnome document viewer (42.3) but when I vew the same file in firefox, 
for some unknow reasom the images are upside down. When I download the 
pdf, then view it with the local document viewer, the images are 
correct. When I drag the pdf into firefox, the turn upside down again.

Is it related to the orientation option in the \externalfigure command 
that is not recognized by firefox?




this is the code I use to place the images on the page:

8<---
\def\zzz#1{
\startTEXpage
\externalfigure[2024/12/small/#1.JPG][width=\textwidth,orientation=180]
\blank[10mm]
\startcombination[3*1]
{\externalfigure[2024/12/thumbs/#1a.JPG][width=0.316\textwidth,orientation=90]}{}
{\externalfigure[2024/12/thumbs/#1b.JPG][width=0.316\textwidth,orientation=90]}{}
{\externalfigure[2024/12/thumbs/#1c.JPG][width=0.316\textwidth,orientation=90]}{}
\stopcombination
\setcounter[userpage][\pagenumber+1]
\stopTEXpage
}

\starttext
\zzz{IMG_8616}
\zzz{IMG_8617}
...
\stoptext

--->8

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[NTG-context] Re: [ pdf images upside down in firefox ]

[Wolfgang Schuster]

vm via ntg-context schrieb am 19.12.2024 um 11:18:
>
> This is most likely an issue with firefox, but i noticed that when i 
> create a file with z serie of images, the pdf shows correct in my 
> local gnome document viewer (42.3) but when I vew the same file in 
> firefox, for some unknow reasom the images are upside down. When I 
> download the pdf, then view it with the local document viewer, the 
> images are correct. When I drag the pdf into firefox, the turn upside 
> down again.
>
> Is it related to the orientation option in the \externalfigure command 
> that is not recognized by firefox?

Does the effect also happen when you open the figure itself with firefox?

If this doesn't show useful results create a short minimal example 
(document with includes only a single image) and send the document plus 
figure to the list.

Wolfgang

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[NTG-context] Re: [ pdf images upside down in firefox ]

[vm via ntg-context]

On 19/12/2024 16:09, Wolfgang Schuster wrote:
>>
> 
> Does the effect also happen when you open the figure itself with firefox?

The issue manifests itself in ubuntu firefox.
It might be related to the image containing camera exif data.
When i strip those from the image, the pdf is show correctly in both the 
local pdf document viewer as well as firefox.

convert src.jog -strip dst.jpg

Thanks Wolfgang for helping out to zoom in on the embedded issue.

.F



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