February 20, 2020
Why am I getting the error message while trying to open the file?
Why am I getting the error message while trying to open the file? Is PDF Expert an unidentified developer?
We would like to draw your attention to the fact that such a situation might be connected with the fact that Apple removed the option 'Allow installation from Anywhere' during the macOS update. However, please rest assured that PDF Expert for Mac is definitely an app from identified developer.
Thus, to resolve the issue in question and hide 'an unidentified developer' pop-up, please try the following:
- Open System Preferences > Security & Privacy > General;
- Click the lock to make changes > enter your credentials;
- Tick 'App Store and identified developers' > check if it remedies the issue in question.
Was this article helpful?YesNo
Thanks for your feedback! 😊