I read that help topic : The Touch ID fingerprint recognition feature available on newer iOS devices is supported in the Pega 7 Platform mobile apps running on this platform. During first log in attempt to the mobile app, the user selects the Use Touch Id checkbox on the Login screen.
is that mean Touch Id only run on IOS ?
I run pega as web application run on Desktop PC & use additional fingerprint scanner.
You should look to implement Pega custom authentication (and Java activities) if your plan is to use the reader to further authenticate users at login. Most vendors provide Java and other SDKs to help you integrate their devices. Here is the vendor for the reader in the photo you provided: http://www.crossmatch.com/sdks/
If you are already using a solution for web single sign-on (SSO) in front of your Pega application then that would probably be the best place to implement MFA for login with your fingerprint reader.
Use the import wizard to import your jar files - remember that you are responsible for the contents of any imported software including side effects it may introduce. If an import file causes issues or the wrong file was imported, you will need to contact Pega Support to determine how to address the problem.