Index: read.c
===================================================================
--- read.c	(revision 36979)
+++ read.c	(revision 36980)
@@ -454,8 +454,8 @@
 
 	grp = lht_dom_hash_get(nd, "size");
 	if ((grp != NULL) && (grp->type == LHT_HASH)) {
-		err |= parse_coord(&pcb->hidlib.size_x, hash_get(grp, "x", 0));
-		err |= parse_coord(&pcb->hidlib.size_y, hash_get(grp, "y", 0));
+		err |= parse_coord(&pcb->hidlib.dwg.X2, hash_get(grp, "x", 0));
+		err |= parse_coord(&pcb->hidlib.dwg.Y2, hash_get(grp, "y", 0));
 		err |= parse_coord_conf(rctx, "design/poly_isle_area", hash_get(grp, "isle_area_nm2", 1));
 		err |= parse_double(&pcb->ThermScale, hash_get(grp, "thermal_scale", 1));
 		if (pcb->ThermScale < 0.01) {
Index: write.c
===================================================================
--- write.c	(revision 36979)
+++ write.c	(revision 36980)
@@ -174,8 +174,11 @@
 
 	grp = lht_dom_node_alloc(LHT_HASH, "size");
 	lht_dom_hash_put(meta, grp);
-	lht_dom_hash_put(grp, build_textf("x", CFMT, pcb->hidlib.size_x));
-	lht_dom_hash_put(grp, build_textf("y", CFMT, pcb->hidlib.size_y));
+	lht_dom_hash_put(grp, build_textf("x", CFMT, pcb->hidlib.dwg.X2));
+	lht_dom_hash_put(grp, build_textf("y", CFMT, pcb->hidlib.dwg.Y2));
+	if ((pcb->hidlib.dwg.X1 != 0) || (pcb->hidlib.dwg.Y1 != 0))
+		pcb_io_incompat_save(NULL, NULL, "board", "drawing are bbox with non-zero origin (X1 or Y1)\n", "Run autocrop()");
+
 	if (wrver < 5) {
 		lht_dom_hash_put(grp, build_textf("isle_area_nm2", "%f", conf_core.design.poly_isle_area));
 	}