diff --git a/src/core/view/components/canvas/index.vue b/src/core/view/components/canvas/index.vue
index 4f1ad7d4a2a5bb0110496345d827d2d69a7c0e57..9f7c357f0eb7b8298db5e2b0b594db6e0f62b5b8 100644
--- a/src/core/view/components/canvas/index.vue
+++ b/src/core/view/components/canvas/index.vue
@@ -386,10 +386,10 @@ export default {
       var imgData
       var canvas = this.$refs.canvas
       if (!width) {
-        width = canvas.offsetWidth
+        width = canvas.offsetWidth - x
       }
       if (!height) {
-        height = canvas.offsetHeight
+        height = canvas.offsetHeight - y
       }
       try {
         const newCanvas = document.createElement('canvas')