This service application contains an extension that converts HTML to PDF with different options:

1- Header and Footer

2- A4 size

Returning Output as Binary

Important note:

The free version of SelectPDF is generating up to 6 PDF pages, if you need unlimited number of pages you have to purchase a license from here and add an additional line of code at the beginning of the extension as follows:

SelectPdf.GlobalProperties.LicenseKey = "ABCDEFGHIJK";