Corrupted Font, PDF File detection in illustrator

Joy,

Understand: The alert you describe is telling you that a font embedded in the PDF is not available for use in the OS. The font is just missing, not "corrupted."

An actual corrupted font can manifest itself in many errant and unpredictable ways in Illustrator; the program doesn't "know" the font is corrupted; it just suffers from whatever damage the corruption causes--like any other kind of corrupted file.

When you open a PDF in Illustrator, the dialog in the standard user interface gives you opportunity to replace a missing font with one that is installed, or ignore it (in which case the default font will be substituted.) As to whether Javascript can be written to automate that, I doubt that the detection of the alerts and the options for answering them are supported in the Javascript model. Moreover, the "answers" would probably have to be written for your specific set of available fonts if you want it to answer with a substitution. But I've never explored that, so I'll defer to anyone who has.

JET