President Obama succeeded in pardoning a final 330 individuals just before finishing up his final term as President of the United States. Those he pardoned were mostly nonviolent drug offenders, which brought his total amount of clemencies to 1,715. This broke records for presidential pardons granted.
During his tenure as POTUS, President Obama commuted the sentences of more prisoners than the last dozen presidents put together. Of that total, 568 were serving life sentences.