At the moment there is no good way to convert HTML files to PDF in combination with FME Cloud/Server. The standard PDF-options in FME are limited. Especially when styling is important, the PDFPageformatter does not provide enough options.
Luckily Safe created the transformer HTML2PDFConvertor several years ago. But this transformer has a big disadvantage: it requires the installation of the wkhtmltopdf.exe. This is not possible using FME cloud.
So it would be great if this tool can be integrated in FME. More information about the tool: