Hello,
I wanted to include pdf slides from:
http://ais.informatik.uni-freiburg.de/lehre/ss03/ki/slides/01-intro.pdf
by pdfTeX, but the colors in some of the images are terrible wrong.
Driver file:
% test.tex
\nopagenumbers
\pdfcompresslevel=0
\pdfximage width 297bp height 210bp page 14 {01-intro.pdf}
% similar page 9, ...
\pdfrefximage\pdflastximage
\bye
Analysis:
01-intro.pdf / test.pdf
/Page object: 107 0 / 3 0
It references via /XObject the /Image object:
/Image object: 110 0 / 8 0
With
/ColorSpace object: 111 0 / 7 0
Start of object 111 0 of 01-intro.pdf:
111 0 obj
[/Indexed
/DeviceRGB
255
<0402070402300402500402700402840402EC3502066E021585020A9A02159C02
...
Start of object 7 0 of test.pdf with one line break for readability:
7 0 obj
[/Indexed/DeviceRGB 255
(\004\002\007\004\0020\004\002P\004\002p\004\002\37777777604
\004\002\377777777545\002\006n\002\025\37777777605\002...
==> The translation of 8-bit characters that have set it eighth bit
get terrible wrong:
hex(84) --> string(\37777777604)
hex(EC) --> string(\37777777754)
It seems that the octal number is written as 32 bit number instead
of a 8 bit number.
Yours sincerely
Heiko