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Posted to users@pdfbox.apache.org by Peter Pinnau <un...@googlemail.com.INVALID> on 2019/09/03 11:07:13 UTC
Detect wether pdf contains JBIG2 encoded images
Is there an easy way to determine if a pdf contains any JBIG2, JPEG2000
... images. I mean all image types which are not supported by plain
pdfbox renderer.
It would be sufficient to get that information from the first page.
I know that I could iterate over content objects and but I believe that
this will take some time and will. Any ideas?
--
Viele Grüße
Peter Pinnau
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Re: Detect wether pdf contains JBIG2 encoded images
Posted by Tilman Hausherr <TH...@t-online.de>.
Am 03.09.2019 um 13:07 schrieb Peter Pinnau:
> Is there an easy way to determine if a pdf contains any JBIG2,
> JPEG2000 ... images. I mean all image types which are not supported by
> plain pdfbox renderer.
>
> It would be sufficient to get that information from the first page.
>
>
> I know that I could iterate over content objects and but I believe
> that this will take some time and will. Any ideas?
>
>
You could try to use the ExtractImages.java example but run it only on
the first page, and not extract the image XObects, just check their suffix.
Tilman
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