Adding pluginsONLYOFFICE Desktop Editors allows developers to add specific features which are not directly related to the OOXML format using plugins. You can use ready-made plugins from ONLYOFFICE App Directory or create your own ones using our Plugins and macros API documentation. There are two ways to add plugins: through the plugin manager and through the plugin folder. Adding plugins through the plugin managerStarting from version 7.4, you can download ready-to-use plugins from ONLYOFFICE Plugin Marketplace. Follow the steps below to add the plugins to the editor using plugin manager:
The plugin will be added to the opened editors and all the editors you will open afterwords and displayed within the Plugins tab. Adding plugins through the plugin folderStep 1. Create a new folder in the sdkjs-plugins directory. The path to the folder depends on the operating system you use:
Step 2. Use a plugin GUID as the folder name. You can find the plugin GUID in the config.json file. For example, for the Extended comments plugin the guid parameter will look the following way:
{
"name" : "Extended comments",
"guid" : "asc.{91EAC419-EF8B-440C-A960-B451C7DF3A37}",
...
}
So, the folder name of this plugin will be {91EAC419-EF8B-440C-A960-B451C7DF3A37}. Step 3. Put all the plugin files to this folder: 
Step 4. Start ONLYOFFICE Desktop Editors. If everything is done correctly, the plugin will be displayed within the Plugins tab: 
Removing plugins from ONLYOFFICE Desktop EditorsTo uninstall the newly added plugins, proceed in the following way:
If you need to uninstall the default plugins, go to the sdkjs-plugins folder and remove the corresponding plugin folder from this directory. The table below contains default plugins guids to make it easier for you to find them: Default plugins guid’s
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Remove button near the corresponding plugin.