You’ve created an HTML template that appears correct in your browser—but when converting it to PDF (using PDF.co or similar tools), the output is a blank page.
Why This Happens
Some JavaScript code embedded in the <head> section of your HTML can interfere with rendering. These scripts may block or delay the loading process in a way that causes the PDF renderer to output an empty page.
How to Fix It
To resolve the issue, you'll use two steps:
Identify and update script tags in the
<head>section.Add the
deferkeyword to delay JavaScript execution until the HTML is fully parsed.
Example: Add defer to Script Tags
Before:
<script type="text/javascript">
// some js code here
</script>
After the Fix:
<script defer type="text/javascript">
// some js code here
</script>
This small change ensures that scripts do not interrupt page rendering during the conversion process.
Helpful Tips
Always validate your HTML with a browser before converting.
Inline JavaScript is generally safe, but defer loading of heavier scripts.
Avoid unnecessary animations or client-side rendering logic in the head section.