The subject lets me assume that you friend has not only Acrobat reader but the full software package. If so then it should be no problem to edit the document. If the document was not created by him but by someone else then the document might be secured by password. Check File-Document Info-Security! If it is secured then maybe a cracking tool can be found on the internet. But then your friend is quite likely to come in conflict with copyright.
Keep on THINKing,
cigarettes taste much better since I'm looking for a cure for cancer :tongue: