diff --git a/README.md b/README.md
index 1921659..36c66c9 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,11 @@
 # ImgURL
 ImgURL是一款简单、纯粹的图床程序，使用PHP + SQLite 3开发，不需要复杂的配置，做到开箱即用。
 
+### 待修复BUG
+* 无法压缩`.jpeg`图片
+* 统一将文件后缀改为小写
+* 后台压缩功能存在BUG，压缩无效。
+
 ### 环境要求
 * PHP >= 5.6
 * 需要exif函数支持
diff --git a/dispose.php b/dispose.php
index 6187a7b..fa3a6e6 100644
--- a/dispose.php
+++ b/dispose.php
@@ -46,7 +46,9 @@
     $level  = $info['level'];
     //获取文件后缀名
     $suffix =  substr(strrchr($info['path'], '.'), 1);
-    if(($suffix == 'png') || ($suffix == 'jpg')) {
+    //后缀变为小写
+    $suffix = strtolower($suffix);
+    if(($suffix == 'png') || ($suffix == 'jpg') || ($suffix == 'jpeg')) {
         $iscompress = 1;
     }
     
diff --git a/functions/class/class.pic.php b/functions/class/class.pic.php
index 2d3c696..c1bd193 100644
--- a/functions/class/class.pic.php
+++ b/functions/class/class.pic.php
@@ -56,7 +56,9 @@
     $level  = $info['level'];
     //获取文件后缀名
     $suffix =  substr(strrchr($info['path'], '.'), 1);
-    if(($suffix == 'png') || ($suffix == 'jpg')) {
+    //后缀改为小写
+    $suffix = strtolower($suffix);
+    if(($suffix == 'png') || ($suffix == 'jpg') || ($suffix == 'jpeg')) {
         $iscompress = 1;
     }
     if($iscompress == 0){
@@ -75,7 +77,7 @@
         \Tinify\setKey($tinykey);
         $source = \Tinify\fromUrl($imgurl);
         //覆盖原有图片
-        $source->toFile($info['path']);
+        $source->toFile(APP.$info['path']);
         //更新数据库
         $database->update("imginfo",[
             "compress"  =>  1