Serial numbers are issued for each version and edition of the software. If you downloaded the Kofax trial and attempt to apply the serial number from a previously purchased version of Power PDF, it won't work. Your option is to purchase a new license for the latest version. However, since you have an older serial number, you're eligible for an upgrade discount. Please contact support or engage with a chat rep on any of the Power PDF pages with your serial number to get your discount code.
Access your Power PDF Advanced Volume (for Enterprise) software through Kofax Electronic Fulfillment at If you have issues, open a ticket with Kofax Enterprise support to have a new login assigned. Please note, this does NOT apply to individual licenses purchased on Kofax.com, and you can't setup an account in KEF. If you bought your license on Kofax.com, you can redownload your files within two weeks of purchase on the 2Checkout portal. If you purchased Download Insurance, you can redownload for 24 months. 2b1af7f3a8