Hello, do you know a fast way to determine whether there are JBIG2-Images in a PDF document?
I want my program switch to another PDF-Tool in this case. Regards Felix Gesendet: Montag, 14. März 2016 um 10:38 Uhr Von: "Felix Hermann" <[email protected]> An: [email protected] Betreff: AW: JBIG2 Images Hello, thanks for your advice. Another point: It seems that levigo is not thread-safe. When I used it with 5 threads, all five threads were blocked after about one hour. All threads were locked in HashMap.getEntry() (after calling a class of levigo). Regards Felix -----Ursprüngliche Nachricht----- Von: Tilman Hausherr [mailto:[email protected]] Gesendet: Mittwoch, 9. März 2016 19:07 An: [email protected] Betreff: Re: JBIG2 Images Am 09.03.2016 um 15:11 schrieb Felix Hermann: > 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[https://pdfbox.apache.org/2.0/dependencies.html[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 is the reason why we don't distribute the levigo software. Solutions for you: - Distribute your software without it and have your users download it - Write your own decoder (you could take the one in PDF.js and write it in java, it is Apache licensed) - Ask levigo for an apache license. Tilman > > Any help will be appreciated > > Regards > > Felix > > --------------------------------------------------------------------- > To unsubscribe, e-mail: > [email protected][mailto:[email protected]] > For additional commands, e-mail: > [email protected][mailto:[email protected]] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected][mailto:[email protected]] For additional commands, e-mail: [email protected][mailto:[email protected]] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
