size = (lowQualitySize < origSize ? lowQualitySize : origSize);
response.setHeader ("Content-length", "" + size);
con.setExtraInfo ("imageratio:" + origSize + "/" + lowQualitySize +
"=" + ((float)lowQualitySize / origSize));
content.release (con);
content = new FileResourceSource (entryName, con.getProxy ());
convertedFile = null;
}