Copyright on -h

src/main.go

@@ -71,6 +71,21 @@ func addText(img *image.RGBA, x, y uint, text string, size float64) error {
 }
 
 func main() {
+	flag.Usage = func() {
+		fmt.Printf(`  -add_note_space
+        Add bottom space for a note or not
+  -dst_dir string
+        Specify path to the output directory (default "output_images")
+  -fontsize float
+        Set font size for note (default 150)
+  -note string
+        Set a note that will be added to the bottom of each extracted image
+  -src_dir string
+        Specify path to the directory where each found PDF file's pages will be converted to images (default ".")
+  
+(c) Kasyanov Nikolay Alexeyevich (Unbewohnte)
+`)
+	}
 	flag.Parse()
 
 	err := os.MkdirAll(*extractionDirPath, os.ModePerm)