C. The license is an 8-digit number. d. Adobe needs a product serial number or an order number within 180 days of when you purchase the product. You can use your serial number to activate, reinstall, or upgrade a license. It will include information such as product type, serial number, and a description of how to activate or upgrade your license. You will need to enter this information before you complete your purchase. e. If you purchased the same copy of the software, your serial number will match the serial number of what is on the receipt. What is the Serial Number for my Adobe Digital Editions CD-ROM You can find the serial number for Adobe Digital Editions at the top of the CD-ROM packaging from which the disc is sold — it's in the bottom right corner near the bottom CD-ROM tray. How to find serial number for your Adobe Products — YouTube If you are having problems with the Adobe ID, try this link: What are the different ways I can find the serial number for my Adobe applications? Find your license — Login to your LOS and you can find a license number or download a license summary for your products. How to find the serial number within my LOS? After you log in, you can see the license summary. Note: You can view your download history in the LOS. Once you click the “View your downloads” option, search within your downloads for the file that matches the product serial number. If you do not see the product serial number, then you need to download the product and open it. Find your serial number in Adobe Online Services Find your serial number in the “Licenses” section at: How to find the serial number for an online Adobe account? Note: If you already have an Adobe product license, you should log in to your account, and you should see your product license serial number in the “Online Services” section of your account.