3 files changed, 23 insertions, 2 deletions
diff --git a/include/mupdf/fitz/document.h b/include/mupdf/fitz/document.h
index d3b9abd5..95e59632 100644
--- a/include/mupdf/fitz/document.h
+++ b/include/mupdf/fitz/document.h
@@ -178,6 +178,12 @@ typedef int (fz_page_separation_disabled_fn)(fz_context *ctx, fz_page *page, int
 */
 typedef fz_separations *(fz_page_separations_fn)(fz_context *ctx, fz_page *page);
 
+/*
+	fz_page_uses_overprint_fn: Type for a function to retrieve
+	whether or not a given page uses overprint.
+*/
+typedef int (fz_page_uses_overprint_fn)(fz_context *ctx, fz_page *page);
+
 typedef void (fz_annot_drop_fn)(fz_context *ctx, fz_annot *annot);
 typedef fz_annot *(fz_annot_next_fn)(fz_context *ctx, fz_annot *annot);
 typedef fz_rect *(fz_annot_bound_fn)(fz_context *ctx, fz_annot *annot, fz_rect *rect);
@@ -212,6 +218,7 @@ struct fz_page_s
 	fz_page_control_separation_fn *control_separation;
 	fz_page_separation_disabled_fn *separation_disabled;
 	fz_page_separations_fn *separations;
+	fz_page_uses_overprint_fn *overprint;
 };
 
 /*
@@ -610,6 +617,12 @@ fz_colorspace *fz_document_output_intent(fz_context *ctx, fz_document *doc);
 fz_separations *fz_page_separations(fz_context *ctx, fz_page *page);
 
 /*
+	fz_page_uses_overprint: Find out whether a given page requests
+	overprint.
+*/
+int fz_page_uses_overprint(fz_context *ctx, fz_page *page);
+
+/*
 	fz_save_gproof: Given a currently open document, create a
 	gproof skeleton file from that document.
 
diff --git a/include/mupdf/pdf/object.h b/include/mupdf/pdf/object.h
index 5ceab1f0..285acf4d 100644
--- a/include/mupdf/pdf/object.h
+++ b/include/mupdf/pdf/object.h
@@ -66,8 +66,15 @@ void pdf_unmark_obj(fz_context *ctx, pdf_obj *obj);
 /* obj memo functions - allows us to secretly remember "a memo" (a bool) in
  * an object, and to read back whether there was a memo, and if so, what it
  * was. */
-void pdf_set_obj_memo(fz_context *ctx, pdf_obj *obj, int memo);
-int pdf_obj_memo(fz_context *ctx, pdf_obj *obj, int *memo);
+
+enum
+{
+	PDF_FLAGS_MEMO_BM = 0,
+	PDF_FLAGS_MEMO_OP = 1
+};
+
+void pdf_set_obj_memo(fz_context *ctx, pdf_obj *obj, int bit, int memo);
+int pdf_obj_memo(fz_context *ctx, pdf_obj *obj, int bit, int *memo);
 
 /* obj dirty bit support. */
 int pdf_obj_is_dirty(fz_context *ctx, pdf_obj *obj);
diff --git a/include/mupdf/pdf/page.h b/include/mupdf/pdf/page.h
index 13f61bfa..969aedf0 100644
--- a/include/mupdf/pdf/page.h
+++ b/include/mupdf/pdf/page.h
@@ -194,6 +194,7 @@ struct pdf_page_s
 	pdf_obj *obj;
 
 	int transparency;
+	int overprint;
 	int incomplete;
 
 	fz_link *links;