Hi,

I have this error when i open e-mail pdf attachment  "File does not begin with '%PDF-'"

this is my batch class to send email.

I do not know where is the problem! please help me.

note: AppelCotisation is my vf page genered pdf, i use this page in another class and execute successfully.

global class BatchT20 implements Database.Batchable<sObject>{



String OppId;
String varRech;
Decimal TaxeOpp=0;
Datetime StartDate;
Datetime EndDate;
 
string AdresseCity;
string AdressePostalCode;
string AdresseStreet;


string NomContrat;
string Numerodepolice;
decimal PrimeTTC;
decimal PrimeTTCPeriode;


        
global final String query ='SELECT id,name FROM Opportunity';    
   
//------------------------------------------------------------------------------------------------------------------------

global Database.querylocator start(Database.BatchableContext BC){
            return Database.getQueryLocator(query);}

global void execute(Database.BatchableContext BC, List<Sobject> scope){


//calcul de la marge temporaire
    string Datedeffet;
    string Datedecheance;
    Datetime dateJour = datetime.now();

    Date dateRef = Date.newInstance(dateJour.year(),dateJour.month(),dateJour.day()-20);
    Date dateMax = Date.newInstance(dateJour.year()-1,dateJour.month()-1,dateJour.day());



                   //-------------------------------------------------------------------------//

List<Quittance__c>  QuittFac = [SELECT Id, Opportunit__c, CreatedDate, Facturation_Avoir__c, varBalance__c, Total_pay__c,
                               Montantdesecheances__c, Nbre_Rappel_Cotisation__c,
                               Opportunit__r.Accountid, Opportunit__r.Date_d_effet__c, Opportunit__r.Type_de_produit__c,
                               Opportunit__r.Statut_Police__c, Opportunit__r.id, Opportunit__r.name, Opportunit__r.Pricebook2.name,
                               Opportunit__r.Date_d_ech_ance_de_la_police__c, Opportunit__r.Account.BillingCity,
                               Opportunit__r.Account.BillingPostalCode, Opportunit__r.Account.BillingStreet,
                               Opportunit__r.Primes_TTC__c, Opportunit__r.Prime_TTC_periode__c
                               
                               FROM Quittance__c
                               where
                               ((Opportunit__r.Date_d_effet__c=:dateRef and Opportunit__r.Type_de_produit__c!='Produit'
                               
                               and (Opportunit__r.Statut_Police__c='Nouvelle'
                               or Opportunit__r.Statut_Police__c='Renouvellement'
                               or Opportunit__r.Statut_Police__c='Avenant'))
                               
                               and Facturation_Avoir__c='Facturation' and varBalance__c<0)];


                   //-------------------------------------------------------------------------//
                   

List <Contact> contact =[Select Id, AccountId, Salutation, FirstName, LastName, Email, Destinataire__c From Contact where Destinataire__c='Oui'];          


                   //-------------------------------------------------------------------------//
                   
                    Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
 
                    List<String> contactids=new List<String>();
    
                
            //-----------------------//
              Integer K=0, s;
              k = QuittFac.size();     
              for ( s=0;s<k;s++)
                {
                     //-------------//
                      if (k!=0)           
                        {
  OppId=QuittFac[s].Opportunit__r.id;                         
  StartDate = datetime.newInstance(QuittFac[s].Opportunit__r.Date_d_effet__c.year(), QuittFac[s].Opportunit__r.Date_d_effet__c.month(), QuittFac[s].Opportunit__r.Date_d_effet__c.day());              
  EndDate = datetime.newInstance(QuittFac[s].Opportunit__r.Date_d_ech_ance_de_la_police__c.year(), QuittFac[s].Opportunit__r.Date_d_ech_ance_de_la_police__c.month(), QuittFac[s].Opportunit__r.Date_d_ech_ance_de_la_police__c.day());
              
  Datedeffet = StartDate.format('dd/MM/yyyy');
  Datedecheance = EndDate.format('dd/MM/yyyy');                            
                            
                         varRech=QuittFac[s].Opportunit__r.Accountid;
                         NomContrat =QuittFac[s].Opportunit__r.Pricebook2.name;
                         
                         PrimeTTC=QuittFac[s].Opportunit__r.Primes_TTC__c;
                         PrimeTTCPeriode=QuittFac[s].Opportunit__r.Prime_TTC_periode__c;
                         
                         
                         AdresseCity = QuittFac[s].Opportunit__r.Account.BillingCity;
                         AdressePostalCode = QuittFac[s].Opportunit__r.Account.BillingPostalCode;
                         AdresseStreet = QuittFac[s].Opportunit__r.Account.BillingStreet;
                         
                      

                         PageReference AppelCotisation = Page.AppelCotisation;
                         AppelCotisation.getParameters().put('id',OppId);
                          
                         Messaging.EmailFileAttachment myEQuote = new Messaging.EmailFileAttachment();
                         
 
                          
                                 
                         Blob htmBlob = AppelCotisation.getContent();                      
                                                        
                                   
                                    Integer M=0, n;
                                    M = contact.size();
                                    for ( n=0;n<M;n++)
                                        {
                                         
                                           if (M!=0 && contact[n].AccountId == varRech && contact[n].Email!=null )           
                                             {
                                                             
                                                 String ContactId =contact[n].Id ;
                                                 String Salutation =contact[n].Salutation ;
                                                 String prenomContact=contact[n].FirstName;
                                                 String nomContact=contact[n].LastName;     
            
                    
                                                 contactids.add(contact[n].Email);
   
   

                                                 mail.setSubject('Rappel 1');  
                               
                       
                                                 mail.setSenderDisplayName('Test@test.com');
                                                 mail.setReplyTo('test@test.com');
                                                 mail.setSenderDisplayName('test');
                                                 
                                                 
            Attachment a = new Attachment(parentId = OppId, name=QuittFac[s].Opportunit__r.name + '.pdf', body = htmBlob, isPrivate=false);
        
            // Insert the attachment
            insert a;
     
     mail.setHtmlBody('html e_mail');


                                                 mail.setWhatId(OppId);
                                                
                                                 mail.setTargetObjectId(ContactId);
                  
                                                 
                                         myEQuote.setFileName(QuittFac[s].Opportunit__r.name.replace('/',' - ')+'.pdf');
                                         myEQuote.setBody(htmBlob);
                      
                                         mail.setFileAttachments(new Messaging.EmailFileAttachment[] {myEQuote});                                                
                                                 
                                     
                      
                                                 Messaging.sendEmail(New Messaging.SingleEmailMessage[]{mail});              
                
                                                 contactids.clear();  
                            
                                             }
                                        }     
                                  
                           QuittFac[s].Nbre_Rappel_Cotisation__c='Rappel1';        
                                                                                                                    
                        }
                 }                    
        
        List<Database.SaveResult> dsrs = Database.update(QuittFac, false);
        for(Database.SaveResult dsr : dsrs){ }           
                    
}
global void finish(Database.BatchableContext BC){
     
}
}

thanks.

moh.