You can find and delete unused images in your help project as follows:
On the Project tab, click Project Objects, then click Media Repository.
In the Project Media window, in the left side, right-click on the Project Media tree.
In the popup menu, click Find Unused Media.
In the dialog, select the Remove option.
Remark: Alternatively, you can also use the Select option to select the unused image files in the tree, and then use the Delete button on the toolbar to delete the selected files.
Please note that after you have deleted image files through the Project Media window, the changes to the project's media repository folder on the disk will apply after you save your help project by clicking the File|Save command (or by pressing the Ctrl+S shortcut key).
How to delete unused images
You can find and delete unused images in your help project as follows:
Remark: Alternatively, you can also use the Select option to select the unused image files in the tree, and then use the Delete button on the toolbar to delete the selected files.
Save your help project to apply the changes
Please note that after you have deleted image files through the Project Media window, the changes to the project's media repository folder on the disk will apply after you save your help project by clicking the File|Save command (or by pressing the Ctrl+S shortcut key).
Great :-) thanks a lot