Praise be to Allah.
We put this question to Shaykh Muhammad ibn Saalih al-Uthaymeen: what is the ruling on giving a kaafir a copy of the Quraan containing the text in Arabic and a translation and commentary amounting to half of the content?
He replied, may Allaah preserve him:
What is known among the scholars is that it is not permissible to give a kaafir power over the Quraan (i.e., put it at his disposal), but if a kaafir is sincere in his desire to know more about the Quraan, a person can invite him to come to a library either a public library or his own home library, where he can show him the Quraan.
If you find a translation of the meanings of the Quraan without the Arabic text then there is nothing wrong with giving that to a kaafir. And Allaah knows best.