Image transparency lost when drawing an image (during pdf to image conversion)
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                 Key: PDFBOX-993
                 URL: https://issues.apache.org/jira/browse/PDFBOX-993
             Project: PDFBox
          Issue Type: Bug
    Affects Versions: 1.5.0
            Reporter: Jesse Eichar
            Priority: Minor


My scenario is converting an existing PDF to an image.  When the PDF contains 
an image with transparency the transparency is lost and the image is drawn at 
100% opacity.

This fix is related (and depends on) the issue:  
https://issues.apache.org/jira/browse/PDFBOX-975  

All that is needed is to set the composite of the graphics before drawing the 
image as specified in the graphics state (See attached patch)

Note:  line number in patch maybe off since it was created from 1.5.0 but after 
fixing 975.

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