diff --git a/main.go b/main.go
index 5cf6cf9..56fb191 100644
--- a/main.go
+++ b/main.go
@@ -26,6 +26,11 @@ func main() {
 	if *file != "" {
 		log.Printf("Attempting to print file %s...\n", *file)
 
+		if !isPossibleToPrint(*file) {
+			log.Fatalln("Cannot print, this is not a photo (.jpg/.png only!)")
+			os.Exit(1)
+		}
+
 		*dir = filepath.Join(os.TempDir(), "phomemo")
 		os.Mkdir(*dir, os.ModePerm) // ignore error in case still existing
 		err := copyFileToFolder(*file, *dir)