If you use MIME types, associate the .djvu and .djv file extensions with the MIME types image/x-djvu, image/djvu, and image/djv. For example, on an Apache server add the following line to the file $(SERVERROOT)/conf/mime.types:
image/x-djvu djvu djv
Other servers have other ways to achieve this MIME association. If you are not sure how to use MIME types for your server, contact your system administrator or use the <EMBED> or <OBJECT> HTML tag in the files in which you want to display DjVu documents. For more information, see Using the <EMBED> and <OBJECT> HTML tags.