diff --git a/components/tpx-bluetooth-print/tpx-bluetooth-print.vue b/components/tpx-bluetooth-print/tpx-bluetooth-print.vue
index 07700b5..35106a7 100644
--- a/components/tpx-bluetooth-print/tpx-bluetooth-print.vue
+++ b/components/tpx-bluetooth-print/tpx-bluetooth-print.vue
@@ -100,7 +100,7 @@ export default {
 				resolve()
 			})
 		},
-		getImageInfo(params = {}) {
+		getImageZip(params = {}) {
 			return new Promise((resolve, reject)=> {
 				uni.canvasGetImageData({
 					x: 0,
@@ -113,8 +113,8 @@ export default {
 							console.log("zip====", data);
 							resolve(data);
 						} else {
-							showToast('获取图片信息异常:getImageInfo')
-							reject('获取图片信息异常:getImageInfo')
+							showToast('获取图片信息异常:getImageZip')
+							reject('获取图片信息异常:getImageZip')
 						}
 					}
 				})
@@ -130,10 +130,12 @@ export default {
 				uni.getImageInfo({
 					src: filePath,
 					success(res) {
+						// 按原图比例算出 新的画图高度
+						that.canvas_height = parseInt(that.canvas_width * (res.height / res.width))
 						cxt.drawImage(filePath, 0, 0, that.canvas_width, that.canvas_height);
 						cxt.draw(true, ()=> {
 							setTimeout( async ()=> {
-								let data = await that.getImageInfo({ canvasId: that.canvasId, width: that.canvas_width, height: that.canvas_height, })
+								let data = await that.getImageZip({ canvasId: that.canvasId, width: that.canvas_width, height: that.canvas_height, })
 								resolve(data)
 							}, 1000)
 						});