[poppler] Pdf-transparency.

[Łukasz Kwestarz]

I want to implement transparency in Pdf file, but i have to do it manual, without using ang software.
I try to use /ExtGState but it applays to everything on the page. Is there anyone who can help my in this. 

This is the Page object with Resources and Alpha definitions.

15 0 obj
<</Type /Page
/Contents 14 0 R
/Parent 13 0 R
/Resources <<
/ExtGState <<
 /AlphaOff 8 0 R
/AlphaOn 7 0 R
>>
/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]
/Font <<
/F4 4 0 R
>>
/Shading <<
/Sh2 2 0 R
/Sh5 5 0 R
>>
/XObject <<
>>
>>
/MediaBox [0 0 595. 842.]
>>
endobj




7 0 obj
<</Type /ExtGState
/ca 0.5
/CA 0.5
>>
endobj
8 0 obj
<</Type /ExtGState
/ca 1
/CA 1
>>
endobj




When I want to applay the alpha i use gs operator.

The worst think is that i do not have to use gs operator, if i only make a definition of alpha ( 7 0 obj... endobj) it applays to the things painten on the page.



Help! Please.





Luke.




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