Am 03.11.2016 um 09:58 schrieb Zeiske, Erik (DualStudy):
Hello everybody,
I have an issue with PDFBox and the handling of a MRC Compressed PDF.
The issue is related to the JBIG2 Compression used in the PDF. If I
try to extract the different Images used in the PDF attached, the
library throws an NullPointerException cause the Bits are not defined
in the JBIG2-Filter. I think this is because in the PDF there is no
“Bits per Component” defined in the JBIG2-Immage. If I try to define
the Bits in the JAVA-Code the program runs without an error, but it
doesn’t apply the JBIG2 mask properly to the foreground-colour-image
of the PDF. To fix this issue I tried to extract the mask into a file,
but it seems like the mask-image is the same as the foreground-image.
I couldn’t find the reason for this and I don’t think it is related to
the PDF itself.
The PDF I was using with is in the attached to this e-mail.
Please upload the file to a sharehoster, PDF attachments are not
allowed. Please tell also what version you are using and what
Tilman
