Am 10.03.2016 um 22:10 schrieb John Hewson:
On 9 Mar 2016, at 06:11, Felix Hermann <[email protected]> wrote:
Hello,
we use PDFBox 2.0.0 for converting PDF to images.
We also want to support JBIG2 images. Therefore we would like to use the JBIG2-Image-Decoder, which is proposed on your website. (See: https://pdfbox.apache.org/2.0/dependencies.html )
On your website it says: "These libraries are optional and will be loaded if present on the classpath, otherwise support for these image formats will be disable and a warning will be logged when an unsupported image is encountered."
I downloaded the source code, created a jar-file and put it onto the classpath.
However it didn't work. I'm getting the following error:
[09.03.2016 14:37:59] ERROR org.apache.pdfbox.contentstream.PDFStreamEngine (PDFStreamEngine.java:851) - Cannot read JBIG2 image: jbig2-imageio is not installed
I also tried 'JBIG2 ImageIO' by 'levigo'. This worked. However we cannot use it, as it is under the GPL-Licence.
That’s interesting, could you add some code to your application to dump the
value of:
ImageIO.getReaderFormatNames()
Make sure you do this in the problem code, with the appropriate classpath. Let
me know the result.
If I understood him correctly, it is a license problem, not a rendering
problem.
Tilman
— John
Any help will be appreciated
Regards
Felix
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