(Optional) License the plug-in to gain access to all its features
1. Use the “Purchase a license” link on the main Picasa Web Upload page to purchase a license.
2. An email will be sent to you containing your license key.
3. Enter the license key into the Lightroom Plug-in Manager.
a. From the Lightroom File menu, select “Plug-in Manager…”
b. Select the Picasa Web Upload plug-in.
c. In the “Picasa Web Upload Settings” section, select “Enter License Key”
d. In the window that opens, paste your license key into the box and press “OK”.
e. You will get a confirmation message if your license is valid.