[Okular-devel] how to get images from pdf files?

Albert Astals Cid aacid at kde.org
Thu Mar 7 10:47:19 UTC 2013


El Dijous, 7 de març de 2013, a les 00:12:10, Haidong Tang va escriure:
> Hi,

Hi

> I'm testing some functionalities on Okular and currently I'm working on
> getting images from a pdf files. I tried to use requestPixmaps( const
> QLinkedList<PixmapRequest*> &requests ) in the class Document to request
> image asynchronously and then use _o_nearestPixmap to get the images when
> they are ready. However, the images I got by using this method are not
> really what I want. This method may give me an image of the whole page, but
> actually I'm only interested in those intrinsic images embedded in a page,
> not a whole page converted into a image. Am I using the wrong function for
> this task? Are there other more proper functions for my task? Thanks!

There's no method that does what you want in the Okular API. You're welcome to 
draft the API for it if you need it and think the backends can implement it.

Cheers,
  Albert


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