diff --git a/assets/批量修改母版.xlsm b/assets/批量修改母版.xlsm
index bad2679..5efdfae 100644
Binary files a/assets/批量修改母版.xlsm and b/assets/批量修改母版.xlsm differ
diff --git a/config/index.js b/config/index.js
index 33f5e0e..eb93b17 100644
--- a/config/index.js
+++ b/config/index.js
@@ -46,7 +46,7 @@ const config = {
         //画布背景颜色
         bgColor: 'rgb(211, 211, 211)',
         //画布宽度
-        width: 1000,
+        width: 2000,
         //画布外边距
         margin: 3,
         //图片间距
diff --git a/py-src/del_copyright_img.py b/py-src/del_copyright_img.py
index 4679e6b..8371db1 100644
--- a/py-src/del_copyright_img.py
+++ b/py-src/del_copyright_img.py
@@ -60,9 +60,16 @@ def remove_copyright_images(pptx_path, copyright_image_paths):
     # 定义要替换的关键字数组
     replace_text_keywords = ["第一PPT"]
     # 定义要删除的关键字符数组(只删除文本框)
-    del_text_keywords = ["Speaker name and title", "OfficePLUS", "Presenter name", "www.officeplus.cn", "第一PPT模板网-WWW.1PPT.COM"]
+    del_text_keywords = [
+        "Speaker name and title",
+        "OfficePLUS", "Presenter name",
+        "www.officeplus.cn",
+        "第一PPT模板网-WWW.1PPT.COM",
+        "标题字体来源于字魂网，未经授权不可商用",
+        "以上字体来源字魂网，未经授权不得商用"
+    ]
     # 定义要删除的关键字符数组(删除整页幻灯片)
-    del_text_keywords_slide = ["模板中使用的字体为开源字体","一站式办公内容服务平台"]
+    del_text_keywords_slide = ["模板中使用的字体为开源字体","一站式办公内容服务平台", "欢迎关注OfficePLUS官方渠道"]
 
     # 遍历所有幻灯片母版
     # for sld_mstr in prs.slide_masters:
diff --git a/src/img_merge.js b/src/img_merge.js
index b6d040d..a475884 100644
--- a/src/img_merge.js
+++ b/src/img_merge.js
@@ -49,7 +49,7 @@ async function stitchImages(imagePaths, { row, bgColor, width, margin, padding }
         create: {
             width: totalWidth,
             height: totalHeight,
-            channels: 3,
+            channels: 4,
             background: bgColor,
         },
     })
@@ -96,7 +96,7 @@ fs.readdirSync(merageImgDir, { withFileTypes: true }).forEach((imgDir) => {
 
             return numA - numB; // 按数字排序
         });
-        const outputName = path.join(previewDir, `${imgDir.name}.png`);
+        const outputName = path.join(previewDir, `${imgDir.name}.jpg`);
         stitchPromises.push(stitchImages(sortImagePaths, merge, outputName));
     }
 });