diff --git a/pdf.c b/pdf.c
index e43a99415df8a70501aebe0a99e2ed9ea7928491..88ae7d94ae616c181c2d95e7873c6dd50642e132 100644
--- a/pdf.c
+++ b/pdf.c
@@ -1,5 +1,6 @@
 /* beginnings of a PDF parser in hammer
  * pesco 2019
+ * Paul Vines 2020
  */
 
 #include <string.h>	/* strncmp(), memset() */