1.Edit the apache config file. Add/Open these contents:

#************* begin *********************

LoadModule deflate_module modules/mod_deflate.so

LoadModule headers_module modules/mod_headers.so



<IfModule deflate_module>

SetOutputFilter DEFLATE

# Don't compress images and other

SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary 

SetEnvIfNoCase Request_URI .(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary 

SetEnvIfNoCase Request_URI .(?:pdf|doc)$ no-gzip dont-vary 

AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css 

AddOutputFilterByType DEFLATE application/x-javascript

</IfModule>

#************** end **********************



2.restart apache