arXiv: floating Open PDF shortcut
Adds a persistent floating PDF button in the bottom-right corner so the full paper opens with a single click.
Code to copy
// Add a sticky "Open PDF" floating button on paper pages
(function () {
if (!/\/abs\//.test(location.pathname)) { return; }
if (document.getElementById('jzArxPdfBtn')) { return; }
var id = (location.pathname.match(/\/abs\/([\w.\-\/]+)/) || [])[1];
if (!id) { return; }
var btn = document.createElement('a');
btn.id = 'jzArxPdfBtn';
btn.href = '/pdf/' + id;
btn.target = '_blank';
btn.rel = 'noopener noreferrer';
btn.textContent = '↓ PDF';
btn.title = 'Open PDF';
btn.style.cssText = [
'position:fixed', 'right:18px', 'bottom:28px',
'padding:12px 18px', 'background:#b31b1b', 'color:#fff',
'font-size:15px', 'font-weight:700', 'text-decoration:none',
'border-radius:30px', 'box-shadow:0 4px 14px rgba(0,0,0,0.25)',
'z-index:99999', 'letter-spacing:0.4px'
].join(';');
document.body.appendChild(btn);
})();How to use this example
- Copy the code with the button above.
- Install JustZix (2 minutes) and open the extension on the target page.
- Add a new rule matching that page.
- Paste the code into the rule's JavaScript panel and save — it runs on every page visit.
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