Since I updated my Foxit PhantomPDF/Foxit Reader to V10, it will not allow me to save a new font size in notes that I pin in the document. In fact, notes that I placed in PDF files with a size of 10 to 12 are all now 9. Additionally, when I change those comments back to 10 or 12 and save the document, it doesn't save the correct font size. When I reopen it, they have returned to the size of 9.
Reason and Solution:
Starting with Foxit PhantomPDF/Foxit Reader V10.0 and above, we add a default font type and size in Foxit PhantomPDF/Foxit Reader application itself for viewing texts in pop-up notes, the default font type is Arial and font size is 9.That is the reason why all texts in pop-up notes are displayed with Arial font type and 9 font size in Foxit Reader by default if the default font type and font size settings in Preferences dialog box in Foxit PhantomPDF/Foxit Reader hasn't been manually changed since you installed the Foxit PhantomPDF/Foxit Reader application.
If you need to specify a new default font and size for viewing texts in the all comment pop-up notes. Please do the followings:
Go to File tab in Foxit PhantomPDF/Foxit Reader>Preferences>Commenting,then please choose your desired font type and size there under Viewing Comments part,click on OK to save the settings.
These settings will apply to all new and existing pop-up notes (including replies to pop-up notes) in any PDF file which is opened in Foxit PhantomPDF/Foxit Reader and will take effect after you restart Foxit PhantomPDF/Foxit Reader.