- pdf_document_get_page_size(document, 0,
- &(info->paper_width),
- &(info->paper_height));
+ info->n_pages = ev_document_get_n_pages (document);
+
+ if (info->n_pages > 0) {
+ page = ev_document_get_page (document, 0);
+ ev_document_get_page_size (document, page,
+ &(info->paper_width),
+ &(info->paper_height));
+ g_object_unref (page);
+