How to Upload to Static Tumblr

Open your browser, navigate to the Tumblr.com homepage and log in with your email address and password.
Click the 'Preferences' gear icon at the top of the Dashboard, scroll to the bottom of the Preferences page and click the 'Themes' link.
Click the 'Submit a theme' button near the top of the page.
Click the 'static file uploader' link in the 'Requirements' box on the right side of the page.
Click the 'Choose File' button and select the document you want to upload to the Tumblr servers.
Click the 'Upload File' button.
Copy the direct URL to the file to use it in your Tumblr theme.
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