diff --git a/internal/converter/converter.go b/internal/converter/converter.go
index 0a2be5f..39f6730 100644
--- a/internal/converter/converter.go
+++ b/internal/converter/converter.go
@@ -389,6 +389,11 @@ func (c *Converter) Validate() error {
 		return errors.New("grayscale mode should be 0, 1 or 2")
 	}
 
+	// crop
+	if c.Options.CropLimit < 0 || c.Options.CropLimit > 100 {
+		return errors.New("crop limit should be between 0 and 100")
+	}
+
 	return nil
 }
 
diff --git a/internal/converter/options/converter_options.go b/internal/converter/options/converter_options.go
index e4d8772..432033b 100644
--- a/internal/converter/options/converter_options.go
+++ b/internal/converter/options/converter_options.go
@@ -268,7 +268,7 @@ func (o *Options) ShowConfig() string {
 		{"Grayscale", o.Grayscale, true},
 		{"Grayscale mode", grayscaleMode, o.Grayscale},
 		{"Crop", o.Crop, true},
-		{"Crop ratio", fmt.Sprintf("%d Left - %d Up - %d Right - %d Bottom - %d%% Limit", o.CropRatioLeft, o.CropRatioUp, o.CropRatioRight, o.CropRatioBottom, o.CropLimit), o.Crop},
+		{"Crop ratio", fmt.Sprintf("%d Left - %d Up - %d Right - %d Bottom - Limit %d%%", o.CropRatioLeft, o.CropRatioUp, o.CropRatioRight, o.CropRatioBottom, o.CropLimit), o.Crop},
 		{"Brightness", o.Brightness, o.Brightness != 0},
 		{"Contrast", o.Contrast, o.Contrast != 0},
 		{"Auto contrast", o.AutoContrast, true},