What can I do if I keep receiving error messages when trying to activate the product online?

There may be a problem with our automatic activation server, or there can be a problem connecting to it from your computer (this can be due to a firewall blocking the communication, for example).

If this occurs more than twice when trying to activate on-line, you can try the e-mail or fax activation as detailed here for PDF2XL, or here for Eudi.