Hi Mayank,
Thank you for your interest in Syncfusion products.
Please follow the steps below that has to be done under Asp.net environment for converting HTML webpage to PDF document .
1) Include the attribute AspCompat="true" in the @Page directive.
Here is the code snippet
[Aspx]
<%@ Page Language="C#" AutoEventWireup="true" AspCompat="true" %>
2) Reference the "AxSHDocVw.dll, SHDocVw.dll" assembly to the project. [This dll can be found along with the sample attachment]
3) Place these COM assemblies in the "BIN" directory of your project.
Please refer the below working sample that demonstrates on converting HTML web page to PDF document and let me know if this meets your requirement.
http://websamples.syncfusion.com/samples/PDF.Web/5.2.0.25/HTMLToPDFWeb/main.htmAlso please let me know if you have any other queries.
Regards,
Jaya