Since this is a religious text often published by local Kerala-based publishers, you can find digital versions using these specific search terms:
Yes, especially if it includes the Arabic script. Malayalam translations are excellent for understanding the meaning. Make sure the PDF includes the original Arabic text alongside the Malayalam. muhiyudheen ratheeb pdf
There are several "Muhiyudheen Ratheeb" apps available on the Google Play Store that function as interactive PDF guides with audio. Since this is a religious text often published