diff --git a/showbits-thermal-printer/static/photo.html b/showbits-thermal-printer/static/photo.html
index da08994..1e29d03 100644
--- a/showbits-thermal-printer/static/photo.html
+++ b/showbits-thermal-printer/static/photo.html
@@ -127,8 +127,9 @@
 
       button.addEventListener("click", () => {
         const canvas = document.createElement("canvas");
-        canvas.width = video.videoWidth;
-        canvas.height = video.videoHeight;
+        const scale = 384 / video.videoWidth;
+        canvas.width = video.videoWidth * scale;
+        canvas.height = video.videoHeight * scale;
         canvas
           .getContext("2d")
           .drawImage(video, 0, 0, canvas.width, canvas.height);