You can use go_image_doc_page_width_height to call a page directly as an image. Here, doc represents the file number, page represents the page number, width represents the maximum width and height represents the maximum height.
For example:
http://localhost/perl/avclient/index.pl? go_image_2108_2_1000_1000
Page 2 of file 2108 is displayed. The image is displayed with a maximum height and width of 1000 pixels.