Surprisingly no, kpdf uses the xpdf code directly. It's rather odd and hackish. A goal of mine is to port it to poppler.

On Sep 16, 2011 12:09 PM, "Ilya Chernykh" <anixxsus@gmail.com> wrote:
> On Friday 16 September 2011 15:40:34 Calvin Morrison wrote:
>
>> It is only for the kfile plugin as far as I remember. Not really worth it
>> IMHO. It would be nice to port poppler to TQt, To use for kpdfs backend, but
>> eh.
>
> Does not kpdf use it?
>
>
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