Reading an image page by page

Hi, couple of questions on image extraction...
i am using pdfnet sdk to extract the contents of pdf. But in the case
of image,element reader is reading and extracting all the images
seperately.I want to read the images page by page and also the image
may appear in between the texts,so i want to read text and images
<para>some texts.some texts.some texts</para>
<para>some texts</para>
How could i read this?...Can textextractor detects images?