n_pages = poppler_document_get_n_pages (priv->document);
gtk_action_set_sensitive (priv->action_prev, priv->page_no > 0);
- gtk_action_set_sensitive (priv->action_next, priv->page_no < n_pages);
+ gtk_action_set_sensitive (priv->action_next, priv->page_no < n_pages - 1);
page = poppler_document_get_page (priv->document, priv->page_no);