Exporting to PDF a record with a journal type field that contains HTML formatting, it does not render as on the User interface (UI). The [code] html tags are shown instead.

1. Open the incident record view
2. Add to the additional comment (or Work notes) field a formatted field
3. Example:
   ====
   [code]<a href="http://www.service-now.com">ServiceNow</a>[/code]
   ====
4. You can see the field rendered correctly in the UI
   
   
5. Export to PDF
6. The resulting PDF presents the not rendered value
   ====
   [code]<a href="http://www.service-now.com">ServiceNow</a>[/code]
   ====
   
   The HTML source is shown

There is no plans to render HTML with PDF exports. This is an intended behavior because we need to reflect exactly that what is added to the comment fields. As an example, there are companies that for compliance reasoning need to reflect the exact text with an export.

If you need to export to PDF, you would need to avoid adding [code] text tags to your journals if you do not want the HTML tags to appear on the export.