If you purchased it directly, your serial number was sent to the email address used during the transaction. The Shift to the Mac App Store
" (the original version) used a traditional serial number system if purchased directly from the Pixelmator Store . Managing a Pixelmator Serial (Classic Only) If you are using the older and need to handle your license: Trial vs. Licensed: You can use Pixelmator in Demo mode for 30 days without a serial. Pixelmator serial
To unlock the full version, launch the app, go to Pixelmator > License... , and click Enter License . If you purchased it directly, your serial number
For the current suite of products, there are no keys to manage: Pixelmator Pro Licensed: You can use Pixelmator in Demo mode
Modern and Photomator no longer use serial numbers; they are licensed exclusively through the Mac App Store via your Apple ID. However, " Pixelmator Classic
: Managed entirely through your Mac App Store "Purchased" tab. As of early 2026, Pixelmator Classic