diff --git a/utils/pdftohtml.1 b/utils/pdftohtml.1
index 850aa84..fbcc077 100644
--- a/utils/pdftohtml.1
+++ b/utils/pdftohtml.1
@@ -68,7 +68,13 @@ user password (for encrypted files)
force hidden text extraction
.TP
.B \-dev
-output device name for Ghostscript (png16m, jpeg etc)
+output device name for Ghostscript (png16m, jpeg etc).
+Unless this option is specified, Splash will be used
+.TP
+.B \-fmt
+image file format for Splash output (png or jpg).
+If complex is selected, but neither -fmt or -dev are specified,
+-fmt png will be assumed
.TP
.B \-nomerge
do not merge paragraphs