+cairo_surface_t *ev_document_misc_surface_from_pixbuf (GdkPixbuf *pixbuf);
+GdkPixbuf *ev_document_misc_pixbuf_from_surface (cairo_surface_t *surface);
+cairo_surface_t *ev_document_misc_surface_rotate_and_scale (cairo_surface_t *surface,
+ gint dest_width,
+ gint dest_height,
+ gint dest_rotation);
+void ev_document_misc_invert_surface (cairo_surface_t *surface);
+void ev_document_misc_invert_pixbuf (GdkPixbuf *pixbuf);
+