noun which may take the genitive case particle 'no', noun
uncensored; unedited; unaltered
Describes content that has not been modified, especially media that has not been censored or edited. Often used for photos, videos, or documents.
This video was released uncensored.
Please submit unaltered photographs.
The film was released uncensored.
Uncensored photos were leaked.
修正 means 'to correct or edit,' while 無修正 describes something left uncensored or unaltered.
Compound of 無 (mu, 'without') and 修正 (shūsei, 'correction, editing').