Since there's no official updates for AZERTY keyboards on Samsung galaxy Pro, here is the tutorial on how to change QWERTY to AZERTY.

First you have to root your galaxy pro, click here on how to root your galaxy pro.

Second you have to intall FILE Explorer on your device. Click here to download

After installing,

Edit all files in /system/user/keylayout
Replace all Q with A, W with Z, A with Q, Z with W.

Then save it.

After saving, clear the RAM.

Done! Check if it worls