diff --git a/entry/src/main/ets/pages/DownsamplingPage.ets b/entry/src/main/ets/pages/DownsamplingPage.ets
index ed0d2f0..7733152 100644
--- a/entry/src/main/ets/pages/DownsamplingPage.ets
+++ b/entry/src/main/ets/pages/DownsamplingPage.ets
@@ -99,7 +99,7 @@ struct Index {
                   this.transformSquare1(this.url);
 
                 });
-              Button('jpp')
+              Button('jpg')
                 .onClick(() => {
                   this.transformSquare1(this.url);
 
@@ -157,7 +157,7 @@ struct Index {
                     errorholderSrc: $r('app.media.icon_failed'),
                   }
                 });
-              Button('jpp')
+              Button('jpg')
                 .onClick(() => {
                   this.transformSquare2(this.url);
                   this.ImageKnifeOption1 = {
@@ -218,7 +218,7 @@ struct Index {
                   this.transformSquare1(bmpUrl);
 
                 });
-              Button('jpp')
+              Button('jpg')
                 .onClick(() => {
                   this.transformSquare1(jpgUrl);
 
@@ -276,7 +276,7 @@ struct Index {
                     errorholderSrc: $r('app.media.icon_failed'),
                   }
                 });
-              Button('jpp')
+              Button('jpg')
                 .onClick(() => {
                   this.transformSquare2(jpgUrl);
                   this.ImageKnifeOption1 = {