Painter 12 or the Painter 12 SP1 and 12 1 updates cannot be installed on Mac OS 10 8 Mountain Lion

Symptom
When attempting to install Painter 12 or the Painter 12 SP1 and 12.1 updates on a Mac with OS X 10.8 (Mountain Lion) you may receive the following error:

Cause
Mac OS 10.8 includes a new security feature called GateKeeper which requires packages to contain digital signatures from the developers. Because this was not a requirement with earlier versions, these signatures may not exist in some of our programs or subsequent updates. As a result, these installations may be blocked.

Solution
To resolve this issue you will need to perform the following steps

METHOD 1

1. Either Right-Click or Control+Click the Painter 12 installer
2. Choose Open
3. Click Open again to confirm
4. Proceed with the installation

METHOD 2

1. Open the Launchpad
2. Open theSystem Preferences
3. Go toSecurity & Privacy
4. Click the lock in the bottom left to make changes
5. Under the heading labeled Allow applications downloaded from:chooseAnywhere
6. ClickAllow From Anywhere to confirm

You may now proceed to install Painter 12 and/or the subsequent program updates. It is recommended to restore the original security settings after the installation is complete.