The instructions from this guide are referring to the WP Admin dashboard. You can get to this dashboard by adding /wp-admin to the end of your site’s url (e.g.: example.wordpress.com/wp-admin)
The Media menu can be used to manage your existing media files, such as images, audio, videos, and documents. You can also upload new files to your Media Library using Media → Add New.
The default screen for the Media menu is the Media Library. By default, the Media Library will display images in a Grid View.
In Grid View you can sort your media types by Images, Audio, and Video files by selecting the drop down menu at the top that says All Media Types.
If you wish to Delete multiple images, check the check box next to every image, and select the Bulk Actions drop down at the top, and select the option to Delete Permanently.
If you wish to switch the images to display in a List View, select the List view icon on the top left menu bar to change the display mode.
The List View mode will display your images in a list, which is the classic look of the media library.
Just like in Grid View, if you wish to bulk delete your images, simply check each image you wish to delete, and then select the bulk actions drop down menu. Then select delete permanently, and select apply. You can filter your media by date while you are in List view.
As with other dashboard pages, you can use the Screen Options in the upper right to configure which columns are shown in the table.
Under the title Media Library, you can see how much upload space you have used and how much is remaining. If you find that you need additional space, you can get one of our Space Upgrades.
Editing an Image
In Grid View, you can edit an image by moving above a image with your cursor and selecting the image.
In List View, Place the cursor over a file name to see the Edit, Delete Permanently, and View action links appear. Then select the Edit link.
After you select Edit in List View (or select the image in Grid View) the Edit Media page will load, allowing you to change the default Title, Alternate Text, Caption, and Attachment Page Content. Remember to click the Update button after making any changes.
If you click on the Edit Image button on this page, you will be able to perform some basic image editing functions on the image.