Hi,
Please try to set HtmlToPdf.Options.ZoomLevel to a value less than 1 and see if it resolves the issue for you. The new version uses a much newer browser engine and also a default zoom level. Most of the time this would not cause any difference because for most page, the automatically determined zoom level will override the default zoom level. However in certain cases the final zoom level can be different between the two versions. When the font is too big, it is usually because the automatically determined zoom level is not small enough.
There are two ways to force a smaller zoom level:
1. To explicitly set HtmlToPdf.Options.ZoomLevel to a value less than 1, or
2. To explicitly add something in your HTML to enforce a minimum width. For example, if you add "<div style='width:1000px;height:1px'></div>" in your HTML, the HTML to PDF converter will detect that and understand that the page needs to be at least 1000 pixel wide. Since the paper width is fixed, a larger pixel width would result in a smaller zoom level value.
You can find more information about zoom level here:
https://www.essentialobjects.com/doc/pdf/htmltopdf/auto_fit.aspxPlease let us know if this works for you.
Thanks!