diff --git a/src/js/config.js b/src/js/config.js
index 473c8a0..0802005 100644
--- a/src/js/config.js
+++ b/src/js/config.js
@@ -101,6 +101,7 @@ config.TOOLS = [
 		name: 'pencil',
 		attributes: {
 			size: 1,
+			pressure: false,
 		},
 	},
 	{
diff --git a/src/js/tools/pencil.js b/src/js/tools/pencil.js
index f473fe3..68957c5 100644
--- a/src/js/tools/pencil.js
+++ b/src/js/tools/pencil.js
@@ -114,7 +114,7 @@ class Pencil_class extends Base_tools_class {
 		var size = params.size;
 		var new_size = size;
 
-		if (this.pressure_supported) {
+		if (params.pressure == true && this.pressure_supported) {
 			new_size = size * this.pointer_pressure * 2;
 		}
 
@@ -139,7 +139,7 @@ class Pencil_class extends Base_tools_class {
 		var size = params.size;
 		var new_size = size;
 
-		if (this.pressure_supported) {
+		if (params.pressure == true && this.pressure_supported) {
 			new_size = size * this.pointer_pressure * 2;
 		}