Hi Madhu,
Thank you for contacting Syncfusion support.
We have checked the reported issue with the provided HTML file in the WebKit HTML converter. We internally make use of Qt WebKit rendering engine for converting HTML to PDF. In the provided HTML file, you are using bootstrap4 styles, but some of the Bootstrap4 styles are not supported in the WebKit rendering engine itself.
The provided HTML file is converted properly in our Blink rendering engine. We have suggested you to try our new Blink based HTML converter to achieve your requirement. Blink converter internally makes use of chromium executable in headless mode for converting HTML to PDF. We have shared the output PDF document (Blink) for your reference,
Kindly refer below link for more information about our Blink converter.
Please let us know if you need any further assistance with this.
Regards,
Sowmiya Loganathan