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

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:

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.

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


  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


  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.

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