The main purpose of the 'Bulk edit image alt tag, caption & description – WordPress Media Library Helper' plugin is to make it quick and simple for users to edit and update the alt tags, captions, and descriptions of multiple images within the WordPress media library. Instead of manually editing each image individually, which can be a time-consuming task, this plugin allows users to select multiple images at once and update their alt tags, captions, and descriptions in bulk.

One of the standout features of this plugin is its intuitive bulk editing interface. Upon installing and activating the plugin, users can navigate to the 'Media' section of their WordPress dashboard, where they will find a new 'Bulk Edit' option. Clicking this option will take them to a page where they can select the images they want to edit and specify the changes they want to make.

The 'Bulk Edit' page provides users with a table view of their selected images, along with editable fields for the alt tag, caption, and description. Users can simply type in the desired changes for each field and then click the 'Update' button to apply the changes to all selected images. This streamlined process eliminates the need for manual editing and significantly speeds up the image optimization workflow.

In addition to the bulk editing functionality, this plugin also offers some useful features to enhance alt tag optimization. One of these features is the ability to generate alt tags automatically based on certain criteria, such as the image file name or post title. This can be a huge time-saver, especially for websites with a large number of images.

Furthermore, the plugin provides users with the option to enable or disable the automatic generation of alt tags, captions, or descriptions for future uploads. This allows users to have greater control over their image optimization strategy and ensures that all new images added to the media library are properly optimized.