If you lose your activation key, you can:
Adobe Acrobat 8 Professional is a legacy product released in 2006 and is no longer supported by Adobe Activation Key For Adobe Acrobat 8 Professional
Adobe Acrobat 8 Professional is a powerful tool used for creating, editing, and managing PDF documents. When you purchase a copy of Adobe Acrobat 8 Professional, you receive an activation key that is essential for unlocking the full features of the software. If you lose your activation key, you can:
Adobe technical support for version 8 officially ended on November 3, 2011 . How to Find Your Original Serial Number If you lose your activation key