Remove powered by Shopify credit from footer
To remove the Powered by Shopify link from your footer, you can simply remove one line of code from your footer.liquid file:
Open the Code Editor
From the theme editor click "Theme actions" and then "Edit code" to get to the theme editor.
Open the footer.liquid file
From the Sections folder, open footer.liquid:
Around Line 147, you can remove this line:
Remove just that one line.
Save the file:
To remove the Invisible themes link, there is a setting in the Theme Editor under the footer section: