diff --git a/editor/jspdf/jspdf.js b/editor/jspdf/jspdf.js
index e50eb857..8810ed89 100644
--- a/editor/jspdf/jspdf.js
+++ b/editor/jspdf/jspdf.js
@@ -991,30 +991,14 @@ PubSub implementation
             };
 
         switch (unit) {
-            case 'pt':
-                k = 1;
-                break;
-            case 'mm':
-                k = 72 / 25.4;
-                break;
-            case 'cm':
-                k = 72 / 2.54;
-                break;
-            case 'in':
-                k = 72;
-                break;
-            case 'px':
-                k = 96 / 72;
-                break;
-            case 'pc':
-                k = 12;
-                break;
-            case 'em':
-                k = 12;
-                break;
-            case 'ex':
-                k = 6;
-                break;
+            case 'pt':    k = 1;              break;
+            case 'mm': k = 72 / 25.4;  break;
+            case 'cm':  k = 72 / 2.54;  break;
+            case 'in':    k = 72;            break;
+            case 'px':   k = 96 / 72;     break;
+            case 'pc':   k = 12;            break;
+            case 'em':  k = 12;            break;
+            case 'ex':   k = 6;              break;
             default:
                 throw ('Invalid unit: ' + unit);
         }