If you purchased the license of Spire.Doc Developer Subscription and a few days later you found you need Spire.Doc Developer OEM Subscription, you can ask to Upgrade Your License.
When Can I Upgrade License?
After you purchase our product and receive license, you can only upgrade your license during the first 3 months. After 3 months, you need purchase what you want. However, you can get 10% OFF discount as a return customer.
How Much I Should Pay?
When you upgrade license, you just need pay the price difference. For example, if you purchased Spire.Doc Pro Edition Developer Subscription ($799) on May 1, 2012 and you want to upgrade to Spire.Office Developer Subscription ($1899) on May 10, 2012, you just need pay $1100. And the register data will be May 10, 2012.
Can I Upgrade My Spire.PDF to Spire.Doc?
No, you can’t. You can convert Spire.PDF to Spire.Office. Or you can convert Spire.PDF Developer Subscription to Spire.PDF OEM Subscription, Spire.PDF Site Enterprise or Spire.PDF Site OEM.
How to Upgrade?
When you found you need upgrade your license, please send email to email@example.com. You need offer us the old license information (Product Name, License Registered Name, Purchasing Date, Purchasing email address and what product license you want to upgrade to). Then, we will generate upgrade coupon code for you.
If you need more help, please contact our sales team.