PDF Box generating blank images due to JBIG2 Images in it
jbig2, pdf-generation, pdfbox
Solution
Take a look at this ticket in PDFBox https://issues.apache.org/jira/browse/PDFBOX-1067 . I think the answer to your question is:
- to make sure that you have JAI and the JAI-ImageIO plugins installed for your version of Java: decent installation instructions are available here: http://docs.geoserver.org/latest/en/user/production/java.html
- to use the JBIG2-imageio plugin, (newer versions are licensed under the Apache2 license) https://github.com/levigo/jbig2-imageio/
Problem
Let me give you an overview of my project first. I have a pdf which I need to convert into images(One image for one page) using `PDFBox` API and write all those images onto a new pdf using `PDFBox` API itself. Basically, converting a pdf into a pdf, which we refer to as PDF Transcoding. For certain pdfs, which contain JBIG2 images, PDFbox implementation of `convertToImage()` method is failing silently without any exceptions or errors and finally, producing a PDF, but this time, just with blank content(white). The message I am getting on the console is: ``` Dec 06, 2013 5:15:42 PM org.apache.pdfbox.filter.JBIG2Filter decode SEVERE: Can't find an ImageIO plugin to decode the JBIG2 encoded datastream. Dec 06, 2013 5:15:42 PM org.apache.pdfbox.pdmodel.graphics.xobject.PDPixelMap getRGBImage SEVERE: Something went wrong ... the pixelmap doesn't contain any data. Dec 06, 2013 5:15:42 PM org.apache.pdfbox.util.operator.pagedrawer.Invoke process WARNING: getRGBImage returned NULL ``` I need to know how to resolve this issue? We have something like: ``` import org.apache.pdfbox.filter.JBIG2Filter; ``` which I don't know how to implement. I am searching on that, but to no avail. Could anyone please suggest?