As you have guessed from subject that we are trying to hide certain html elements (links, paragraphs, images) during pdf conversion. We have used already forum suggested approach during our conversion but we are facing some issues with it.
We have supplied all html elements IDs comma separated to InvisibleElementIds property. While it seems to be working in most scenarios, we are having diffculty when there are multiple html element with same ID (our html page is dynamically generated and sometimes html element IDs are same). For some reason only last element in html page gets hidden during pdf conversion.
Here is the snippet of our code used for pdf conversion.

System.IO.MemoryStream stream = new System.IO.MemoryStream();
try
{
EO.Pdf.Runtime.AddLicense(pdfParams.Key);
PdfDocument doc = new PdfDocument();
HtmlToPdf.Options.HeaderHtmlFormat = "PDF converted from {url}<hr />";
HtmlToPdf.Options.FooterHtmlFormat = @"<hr /><div style=""text-align:right""><span style=""font-family:Arial,Verdana;font-size:9px;"">" + DateTime.Now.ToShortDateString() + @" | Page {page_number} of {total_pages}</span></div>";
HtmlToPdf.Options.InvisibleElementIds = "lnkLargerImage4;pageGenericMessage;spanTotalItems";
HtmlToPdf.Options.NoLink = true;
HtmlToPdf.ConvertUrl("url of the webpage here", doc);
doc.Save(stream);
stream.Position = 0;
return stream.ToArray();
}
catch (Exception excp)
{
throw new Exception("HtmlToPdf.ConvertUrl failed", excp);
}
finally
{
stream.Dispose();
}

Do you suggest using any other better approach for hiding certain portion\part of html page? Can we have css class based approach for hiding html elements?

Thanks -nilesh