Base64 PDF解析器
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Base64 PDF解析器</title>
<style>
body {
font-family: Arial, sans-serif;
max-width: 800px;
margin: 20px auto;
padding: 20px;
}
.container {
border: 1px solid #ccc;
padding: 20px;
border-radius: 5px;
}
textarea {
width: 100%;
height: 150px;
margin: 10px 0;
}
button {
padding: 10px 20px;
background-color<