A 42-year-old man has admitted charges of possessing an objectionable publication and making an objectionable publication after the March 15 terror attack in Christchurch.

A 42-year-old man has admitted sharing an image he called "Call of Duty Black Mosque NZ Edition" after the March 15 terror attack in Christchurch.

The image showed the shooter holding his rifle at the entrance of the Al Noor mosque, and a deceased body lying in the entrance way.

He also had numerous pictures and videos of the footage from the mosque attack on March 15.

The man pleaded guilty in the Christchurch District Court on Friday to a charge of possessing an objectionable publication, and making an objectionable publication.

He has interim name suppression, which will be argued at his next appearance in court on February 26.

A pre-sentence report has been ordered and the man remains on bail.

The man sent the image multiple times using Facebook messenger with three laugh/cry emojis following one of the messages.

The man used a mobile phone app called Youcut to edit the original video into smaller files, and sent eight emails of the files on March 17.

He also pleaded guilty to possession of cannabis plant, possess of utensils for methamphetamine, unlawful possession of a firearm at another session in the court, and will be sentenced on all charges.