This was answered here:
Hello All! I am sorry if this has already been addressed on another thread, I was unable to find any information. I am re-applying this upcoming 2019-2020 cycle and have re-written my Personal Statement and have added a few new experiences over the past year. I am working on revising my...
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The short is: Yes, move sentences around, reword things, have different people look at them. Writing is subjective and is never perfect so you can make changes.
The content can be the same, but your presentation of the content should definitely change.