diff --git a/app/javascript/draw.js b/app/javascript/draw.js
index 2a0a917c..3b95b5ea 100644
--- a/app/javascript/draw.js
+++ b/app/javascript/draw.js
@@ -89,7 +89,7 @@ window.customElements.define('draw-signature', class extends HTMLElement {
   }
 
   redrawCanvas (oldWidth, oldHeight) {
-    if (this.pad && !this.pad.isEmpty()) {
+    if (this.pad && !this.pad.isEmpty() && oldWidth > 0 && oldHeight > 0) {
       const sx = this.canvas.width / oldWidth
       const sy = this.canvas.height / oldHeight
 
diff --git a/app/javascript/elements/signature_form.js b/app/javascript/elements/signature_form.js
index b7ce43e5..5fc9af48 100644
--- a/app/javascript/elements/signature_form.js
+++ b/app/javascript/elements/signature_form.js
@@ -80,7 +80,7 @@ export default targetable(class extends HTMLElement {
   }
 
   redrawCanvas (oldWidth, oldHeight) {
-    if (this.pad && !this.pad.isEmpty()) {
+    if (this.pad && !this.pad.isEmpty() && oldWidth > 0 && oldHeight > 0) {
       const sx = this.canvas.width / oldWidth
       const sy = this.canvas.height / oldHeight
 
diff --git a/app/javascript/submission_form/signature_step.vue b/app/javascript/submission_form/signature_step.vue
index d7cb86fb..19e9ab2b 100644
--- a/app/javascript/submission_form/signature_step.vue
+++ b/app/javascript/submission_form/signature_step.vue
@@ -514,7 +514,7 @@ export default {
     redrawCanvas (oldWidth, oldHeight) {
       const canvas = this.$refs.canvas
 
-      if (this.pad && !this.isTextSignature && !this.pad.isEmpty()) {
+      if (this.pad && !this.isTextSignature && !this.pad.isEmpty() && oldWidth > 0 && oldHeight > 0) {
         const sx = canvas.width / oldWidth
         const sy = canvas.height / oldHeight