diff --git a/LICENSE b/LICENSE
index fc3d712..f2ecdf9 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,7 @@
 BSD 3-Clause License
 
 Copyright (c) 2019, Jérôme Renard
+Copyright (c) 2022, Mohammad-Mohsen Aseman-Manzar
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/README.md b/README.md
index 0bb27cf..d62a76d 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@ problem by obfuscating the string so it is no longer searchable with
 You can install mumbojumbo by running:
 
     go get github.com/jeromer/mumbojumbo/...
+	go install github.com/jeromer/mumbojumbo
 
 ## Usage
 
@@ -94,6 +95,10 @@ see "some secret"
 
 Run `mumbojumbo --help` to get help
 
+You can also use a text file as input:
+
+    mumbojumbo -sf=/path/to/file -p=foo | goimports > foo.go
+
 ## License
 
 This project is licensed under the BSD 3-Clause License - see the [LICENSE](LICENSE) file for details
diff --git a/main.go b/main.go
index ffe0a63..5308f4d 100644
--- a/main.go
+++ b/main.go
@@ -17,12 +17,12 @@ const (
 )
 
 var (
-	s = flag.String("s", "", "string to obfuscate")
-	p = flag.String("p", "", "pkg name for the generated code")
+	s  = flag.String("s", "", "string to obfuscate")
+	sf = flag.String("sf", "", "string file to obfuscate")
+	p  = flag.String("p", "", "pkg name for the generated code")
 )
 
-var (
-	tpl = `// CODE GENERATED BY mumbojumbo {{ .Version }} (https://github.com/jeromer/mumbojumbo) DO NOT EDIT !!!!
+var tpl = `// CODE GENERATED BY mumbojumbo {{ .Version }} (https://github.com/jeromer/mumbojumbo) DO NOT EDIT !!!!
 
 package {{ .Pkg }}
 
@@ -38,13 +38,24 @@ func Get() string {
 {{ .Obfuscated }}
 }
 `
-)
 
 func main() {
 	flag.Parse()
 
+	var text string
+
 	if *s == "" {
-		quit("no string provided")
+		if *sf != "" {
+			b, err := os.ReadFile(*sf)
+			if err != nil {
+				quit(err.Error())
+			}
+			text = string(b)
+		} else {
+			quit("no string provided")
+		}
+	} else {
+		text = *s
 	}
 
 	if *p == "" {
@@ -56,7 +67,7 @@ func main() {
 			tplData{
 				Version:    VERSION,
 				Pkg:        *p,
-				Obfuscated: obfuscate(*s),
+				Obfuscated: obfuscate(text),
 			},
 		),
 	)
@@ -77,7 +88,6 @@ func generateGoCode(data tplData) string {
 
 	w := new(bytes.Buffer)
 	err := tmpl.Execute(w, data)
-
 	if err != nil {
 		panic(err)
 	}