Edit Appearance Edit Theme
In your Tumblr dashboard, open your Account Settings. Select Edit Appearance and click Edit Theme.
Go to Edit HTML.
Paste the Script
Paste this script into the Tumblr HTML file. It's always best to paste it between the Head tags. Then update and save.
Create a new Text post in the Tumblr dashboard.
Paste this shortcode into the post. You'll see the new POWr Digital Download plugin when you expand the post. Click the POWr Settings Icon to open the POWr Editor.
Start to edit your Digital Download Plugin:
Visit the live Tumblr web page and click the settings gear in the top right corner of the Digital Download Plugin.