Why is the ZapfDingbats font not visible in my Web Document Viewer?
I have some PDFs that use the Zapf Dingbats font to place an X in checkbox fields to show that they are selected.

They display perfectly when viewed in an application like Adobe Reader, NitroPDF, PrimoPDF, and pretty much any other applications used to display PDFs. However, when I attempt to upload a document with the ZapfDingbats font to my web document viewer ... all I am able to see is empty squares.

Is there any way to install the ZapfDingbats font that will allow my document viewer to show the X instead of the box?
Thank you in advance for any assistance you can provide.
