DO NOT REPLY [Bug 49233] New: conversion B&W GIF=>PDF creates PDF with colorspace RGB if FOP0.95 and Gray if FOP0.20.5

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=49233

           Summary: conversion B&W GIF=>PDF creates PDF with colorspace
                    RGB if FOP0.95 and Gray if FOP0.20.5
           Product: Fop
           Version: 0.95
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: awt renderer
        AssignedTo: fop-dev@xmlgraphics.apache.org
        ReportedBy: isidora@juno.com


Even though the PDFs obtained with both FOP versions look and print OK, when
the one created with 0.95 is pushed through the FAX system, the image obtained
contains dotted areas that correspond to white areas in the PDF created with
0.20.5. 
I posted the question to FOP forum and Jeremias Maerki helped me research the
issue. If the PDF with problems is manipulated by :
changing /ColorSpace [/Indexed /DeviceRGB 1 <FFFFFF000000>]
 to:
/ColorSpace [/Indexed /DeviceGray 1 <FF00>
the dotted areas go back to be white areas. i.e. the problem is resolved by
this change

When I asked him if I could make this change in colorspace from inside my
XSL-FO he responded:
"If you want this kind of functionality, it has to be fixed in Java code
first.If you want to give this a try, the place to fix this is:
org.apache.fop.render.pdf.ImageRenderedAdapter.populateXObjectDictionary(PDFDictionary)
There, a check has to be implemented to see if all palette entries are
plain grayscale values (red, green and blue all the same) in which case
/DeviceGray can be specified instead of /DeviceRGB. And of course, the
palette entries need to be 8bit rather than 24bits then."

My expertise in manipulating colors and graphics is not big enough for me to
make changes to this code. So, I hope someone with more knowledge could fix
this bug.
Thank you

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DO NOT REPLY [Bug 49233] conversion B&W GIF=>PDF creates PDF with colorspace RGB if FOP0.95 and Gray if FOP0.20.5

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=49233

Glenn Adams <gl...@skynav.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P2                          |P3

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DO NOT REPLY [Bug 49233] conversion B&W GIF=>PDF creates PDF with colorspace RGB if FOP0.95 and Gray if FOP0.20.5

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=49233

--- Comment #1 from Glenn Adams <gl...@skynav.com> 2012-04-07 01:43:24 UTC ---
resetting P2 open bugs to P3 pending further review

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