Apple Mac OS X (10.6 Snow Leopard or newer):
Most web browsers in Mac OS X place files downloaded from the web in your Downloads folder. Safari usually identifies the plugin file directly, and there is no need to unzip. However, if you are using a different web browser such as Google Chrome or Mozilla Firefox, you will need to double-click the Photosmith.lrplugin.zip file using Finder to decompress the plugin package, as shown here:
Once Photosmith.lrplugin.zip is unzipped, you will see a file named Photosmith.lrplugin, also in your Downloads folder. This is the actual Lightroom plugin package, which should be moved to another safe location on your local hard drive:
For most users, moving it to the Documents folder is sufficient. However the Adobe-recommended location is:
If this path or directory doesn’t exist, you may create it.
The below example shows moving the Photosmith.lrplugin plugin package to the Documents directory:
Once Photosmith.lrplugin has been moved, you may close Finder, start Lightroom, and select File -> Plug-in Manager… from the top menu:
In Lightroom’s Plug-in Manager, click the Add button in the lower left-hand corner:
Then browse to the location of the Photosmith.lrplugin package in the Documents folder on your hard disk.
Once correctly installed, you will see Photosmith listed in Lightroom’s Plug-in Manager with a green circle, saying “Installed and Running.” This indicates all is OK with the plugin, and you may click the Done button to complete installation:
Now, you must quit and restart Lightroom. If your OS X Firewall is enabled, when Lightroom next restarts, you will receive the following prompt from the OS X Operating System:
Click the Allow button so that psahttp, Photosmith’s background service which handles sync-related network traffic to and from Lightroom, can receive data from the local network (LAN), through the OS X Firewall. Clicking the Deny button will cause Photosmith sync to not work.
Microsoft Windows (Windows XP and newer):
Using Windows Explorer, browse to the download location on your hard disk of the Photosmith ZIP-compressed plugin file, Photosmith.lrplugin.zip. It will likely be your Downloads folder. Decompress Photosmith.lrplugin.zip by double-clicking on it.
Note: Depending on how Windows Explorer is configured, filename extensions may or may not be visible. The default in Windows is to not display filename extensions for commonly known file types like ZIP-compressed (.zip) files. The above example shows Windows Explorer in this default state.
Once the plugin ZIP-compressed file Photosmith.lrplugin.zip is decompressed, you will see the folder Photosmith.lrplugin listed by itself:
Move Photosmith.lrplugin to your Libraries -> Documents -> My Documents folder by clicking and dragging in Windows Explorer:
Now, add the Photosmith plugin to Lightroom: Launch Lightroom, then select File -> Plug-in Manager… from the menu to display Lightroom’s Plug-in Manager. In the lower left-hand corner, click the Add button:
You will now see a window titled “Add a Lightroom Plug-in. Please select a folder whose name ends with “.lrplugin”.” Choose the Photosmith.lrplugin module located in your Documents or My Documents folder in the left pane. Click the Select Folder button to continue:
Once correctly installed, you will see Photosmith listed in Lightroom’s Plug-in Manager with a green light, under which “Installed and Running” is displayed. Click the Done button to complete the plugin installation.
Note: If the Photosmith plugin is marked as Disabled or shows a red light, select the Photosmith plugin and scroll down to Enable / Disable buttons and click Enable.