To change the author of a blog post or page in WordPress, follow these simple steps:
1. Log in to your WordPress dashboard.
2. Navigate to the Posts section if you’re changing the author of a blog post. For a page, go to the Pages section.
3. Find the post or page you want to change the author of and click Edit.
4. Inside the editor, look to the right-hand side for the Document settings panel.
5. Scroll down to the Author dropdown. If you don’t see it, make sure you’re in the Document tab, not the Block tab.
6. Select the new author from the dropdown menu. The list will contain the names of all users who have the capability to be authors.
7. Update or Publish the post/page to save your changes.
And that’s it! You’ve successfully changed the author of a post or page in WordPress.