diff --git a/jxrencoderdecoder/JxrDecApp.c b/jxrencoderdecoder/JxrDecApp.c
index 35fa10c..5779eb8 100644
--- a/jxrencoderdecoder/JxrDecApp.c
+++ b/jxrencoderdecoder/JxrDecApp.c
@@ -82,8 +82,9 @@ void WmpDecAppUsage(const char* szExe)
     printf(CRLF);
     printf("  -i input.jxr/wdp             Input JPEG XR/HD Photo file name" CRLF);
     printf(CRLF);
-    printf("  -o output.bmp/tif/jxr        Output image file name" CRLF);
+    printf("  -o output.bmp/pnm/tif/jxr    Output image file name" CRLF);
     printf("                               bmp: <=8bpc, BGR" CRLF);
+    printf("                               pnm: >=8bpc, RGB" CRLF);
     printf("                               tif: >=8bpc, RGB" CRLF);
     printf("                               jxr: for compressed domain transcode" CRLF);
     printf(CRLF);
diff --git a/jxrencoderdecoder/JxrEncApp.c b/jxrencoderdecoder/JxrEncApp.c
index aa9de53..7d822e1 100644
--- a/jxrencoderdecoder/JxrEncApp.c
+++ b/jxrencoderdecoder/JxrEncApp.c
@@ -55,8 +55,9 @@ void WmpEncAppUsage(const char* szExe)
     printf(CRLF);
     printf("%s [options]..." CRLF, szExe);
     printf(CRLF);
-    printf("  -i input.bmp/tif/hdr         Input image file name" CRLF);
+    printf("  -i input.bmp/pnm/tif/hdr     Input image file name" CRLF);
     printf("                               bmp: <=8bpc, BGR" CRLF);
+    printf("                               pnm: >=8bpc, RGB" CRLF);
     printf("                               tif: >=8bpc, RGB" CRLF);
     printf("                               hdr: 32bppRGBE only" CRLF);
     printf(CRLF);