You can add publisher information separately in the Metadata->Release Info tab while editing your game, but Itch.io is made with the assumption that people will upload their own creations. I'm not sure how you could fix that, sorry.
I've tried put the publisher information in the Metadata->Release Info tab, now I can see the publisher name shows my name. But still author name doesn't change.
You can add them as an “Admin” to the page, and select “Display as contributor,” and their name will show up anywhere where the project’s author would normally show. Keep in mind this will also give them access to edit the page and see the internal analytics.
Hi! Thanks for your help! I've tried add the publisher name as Admin. Now the game page shows publisher name. And when select " Display as contributor", that could add names to author. And which this is what I need!
So thank you very much! Problem solved!!!! Great thanks!!