<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>PDF Viewer</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: #525659; height: 100vh; }
iframe { width: 100%; height: 100%; border: none; display: block; }
#error {
color: #fff; font-family: sans-serif; text-align: center;
padding: 40px;
}
</style>
</head>
<body>
<script>
const params = new URLSearchParams(location.search);
const url = params.get('url');
if (!url) {
document.body.innerHTML = '<div id="error">No URL provided</div>';
} else {
const iframe = document.createElement('iframe');
// Use Google Docs viewer for external PDFs, native embed for same-origin
try {
const parsed = new URL(url);
if (parsed.origin === location.origin) {
iframe.src = url;
} else {
iframe.src = 'https://docs.google.com/gview?embedded=1&url=' + encodeURIComponent(url);
}
} catch {
iframe.src = url;
}
document.body.appendChild(iframe);
}
</script>
</body>
</html>
