Lucene search in attachments

[sreedevi s]

Hi,
    Which is the best method to search in attachments in lucene? I am new
to lucene and I am using version 4.10.2. By making use of Tika, I know I
can convert files to text and then index it as another field. But for large
files that will not be the ideal solution. I believe the maximum characters
per field is 10,000. So, what can be ideal method to search attachments then


Best Regards,
Sreedevi S