Your problem is due to using a JSP. Between the JSP "directives" you have CRLF that is send to the client, that is, between <%@ page import="java.io.File, | java.io.InputStream, | java.io.FileInputStream, | java.io.OutputStream"%> | and <%@ page session="false" %> you have a CRLF, as well as in other places... You could take them off, but you will get one CRLF (the last one)... So it's not a good practice to download files through JSP; better use a Servlet or you will get corrupted data most of the times. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4059410#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...