On Fri, May 27, 2011 at 5:11 PM, Peter Rolf <indi...@gmx.net> wrote:
> Am 27.05.2011 15:09, schrieb Hartmut Henkel:
>>>> @luigi: an ICC profile definitely breaks the <png copy> rules
>>>>
>>>> The only chunks left are
>>>>
>>>> IHDR    PNG image header: 5900x4094, 8bits/sample, truecolor,
>>> noninterlaced
>>>> IDAT    PNG image data
>>>> ..
>>>> IDAT    PNG image data
>>>> IEND    end-of-image marker
>>>>
>>>> Mh, where is the show stopper? The compression method?
>>>>
>>> Looks like some of ConTeXt PDF/X-related settings is causing this. If I
>>> reduce the code to the pure picture, the '(PNG copy)' is triggered.
>>> Probably the active color management (default color space) is breaking
>>> the copy process here.
>>
> Sorry Hartmut, my last statement is complete BS. I made a 'blind' run in
> my lunch break, not inspecting the pdf. And sadly I had forgotten, that
> I changed the test file yesterday to use a small png test graphic
> instead of my big png. *brain vs. full stomach: 0:1*
>
> So the PDF/X settings have no influence on this. The big png is not
> 'copied'.
> Anyhow, this is not a serious problem and honestly I don't have that
> much time now. When I have some more time I will use gdb to find the
> failing condition in writepng.w. Will be interesting, the last time I
> used gdb is more than 10 years ago.
if you have an example with a public png I can take a look...

-- 
luigi
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