You can choose from the following privacy settings.

• Public: Visible to everyone.
• Logged-in users only: Only visible to those who are logged into pixiv. However, the title, caption, and tags will also be visible to those who are not logged in.
• My pixiv only: Only visible to your My pixiv friends（What is My pixiv?）. These posts will not appear in search results.
• Private: Not visible to anyone except you. These posts will not appear in search results.