Self-publishing is the publication of media by its author at their own cost, without the involvement of a publisher. The term usually refers to written media, such as books and magazines, either as an ebook or as a physical copy using print on demand technology. It may also apply to albums, pamphlets, brochures, games, video content, artwork, and zines. Web fiction is also a major medium for self-publishing.
自費出版 (Self-publishing)
Wikipedia
https://en.wikipedia.org/wiki/Self-publishing
Self-publishing is the publication of media by its author at their own cost, without the involvement of a publisher. The term usually refers to written media, such as books and magazines, either as an ebook or as a physical copy using print on demand technology. It may also apply to albums, pamphlets, brochures, games, video content, artwork, and zines. Web fiction is also a major medium for self-publishing.
The 17 BEST Self-Publishing Companies of 2023
https://blog.reedsy.com/best-self-publishing-companies/
自費出版ができるおすすめの印刷・出版会社11社を紹介
https://www.net-seihon.co.jp/media/select