Harvard Admission - Transcripts?

“These forms must be completed by your school counselor or other school adviser. Ask that the School Report form be completed and returned to our office as soon as possible. Your school also must submit an official high school transcript, preferably submitted online through Parchment/Docufide or Scrip-safe International. The Mid-Year Report should be returned in February with your latest grades.”

Can somebody please explain this? Am I required to have my teachers use Parchment/Docufide or Scrip-safe International?
Just FYI, I am an international student from Japan.

Are you required? No. It’s more convenient, and helps admissions ensure that all documents have been received. But a stamp and an envelope will work, too.