diff --git a/docutranslate/static/katex/copy-tex.css b/docutranslate/static/katex/copy-tex.css
deleted file mode 100644
index e69de29..0000000
diff --git a/docutranslate/static/katex/copy-tex.min.css b/docutranslate/static/katex/copy-tex.min.css
new file mode 100644
index 0000000..e5b8b8f
--- /dev/null
+++ b/docutranslate/static/katex/copy-tex.min.css
@@ -0,0 +1 @@
+.katex,.katex-display{user-select:all;-moz-user-select:all;-webkit-user-select:all;-ms-user-select:all}
\ No newline at end of file
diff --git a/docutranslate/template/markdown.html b/docutranslate/template/markdown.html
index f220974..de777b8 100644
--- a/docutranslate/template/markdown.html
+++ b/docutranslate/template/markdown.html
@@ -5,11 +5,13 @@
     <title>{{title}}</title>
     {{pico}}
     {{katexCss}}
+    <link rel="stylesheet" href="/static/katex/copy-tex.min.css">
     {{katexJs}}
     <script src="/static/katex/copy-tex.min.js"></script>
     {{autoRender}}
     <style>
         html {
+            padding: 2vh 10vw;
             padding: 2vh 10vw;
             font-size: 15px;
         }
@@ -22,12 +24,12 @@
 {{renderMathInElement}}
 {{mermaid}}
 <script>
-    setTimeout(()=>{
-        const KatexErrors=document.getElementsByClassName("katex-error")
+    setTimeout(() => {
+        const KatexErrors = document.getElementsByClassName("katex-error")
         for (const katexError of KatexErrors) {
-            katexError.innerHTML=katexError.title
+            katexError.innerHTML = katexError.title
         }
-    },200)
+    }, 200)
 </script>
 <script>
     mermaid.initialize({
diff --git a/更新日志.txt b/更新日志.txt
index b2ace8a..bbf3810 100644
--- a/更新日志.txt
+++ b/更新日志.txt
@@ -1,10 +1,11 @@
 更新日志
 ----------------
-v1.5.2版 2025.11.25
+v1.5.2.post1版 2025.11.25
 特性
 - 新的/service/translate/file接口可以直接上传表单文件
 - `docutranslate -i -cors`开启跨域
 优化
+- pdf可复制公式
 - 使用vue重构前端代码
 - 优化xlsx翻译效果
 - 优化epub的性能开销