public Boolean Save() {
    Boolean saveStatus;
    List<ContentVersion> CVs = new List<ContentVersion>();
    List<ContentDocumentLink> CDLs = new List<ContentDocumentLink>();
        //Get the ContentVersion RecordTypeID for General FIles
        string CVRTID = [select id, name from recordtype where sObjectType = 'ContentVersion' and Name = 'Standard'].Id;
      for (ExtendedDocument doc : docs) {
      system.debug('Im in for look of docs');
         if (doc.file != null) {
         system.debug('Im in so doc.file is not  null');
            ContentVersion v = new ContentVersion();
            v.RecordTypeId = CVRTID;
            v.versionData = doc.file;
            v.Description = doc.odContentVersion.Description;
            v.Document_Type__c = doc.odContentVersion.document_type__c;
            v.title = doc.fileName;
            v.pathOnClient =doc.fileName;
            //add convtentversion to list
            CVs.add(v);
            file=null;
        }
     //end of for loop below
     }

    if(CVs.size() >=1) {
        for(ContentVersion CVSlist : CVs){
            try{
            insert CVSList;
                 for (id opid : oppIds)  {

                        //create the contentdcumentlink to link the contentversion to each of the opportunities
                        CVSList = [SELECT ContentDocumentId FROM ContentVersion WHERE Id = :CVSList.Id];

                            ContentDocumentLink cdl =
                            new ContentDocumentLink(
                            ContentDocumentId=CVSList.ContentDocumentId,
                            ShareType = 'V',
                            LinkedEntityId=opid);
                            //CDLs.add(cdl);
                            insert cdl;
                    }
            saveStatus = true;
            }
            catch (DMLException e) {
            system.debug('I thre an error while uploading the file.. missing data maybe');
               //ApexPages.addMessage(new ApexPages.message(ApexPages.severity.ERROR,'Error uploading file'));
               ApexPages.Message msg = new ApexPages.Message(ApexPages.Severity.ERROR,
                    'Error uploading file');
                ApexPages.AddMessage(msg);
            saveStatus = false;
           }
        }
     }
      else{
      system.debug('I threw an error no file');
          ApexPages.Message msg = new ApexPages.message(ApexPages.Severity.ERROR,
            'You did not choose a file to upload. Please choose a file or Cancel');
          ApexPages.addMessage(msg);
          saveStatus = false;
      }
     return saveStatus;
}