this is the controller class:

public with sharing class ClaimFormController {

private final Aircraft_Eligible_Event_Invoice__c Aee_In;
private final Aircraft_Eligible_Event__c Aee;
private final Aircraft__c parentAC;
public string Logo_URL;

public ID AeeIn_Id {get;set;}
private ID Aee_Id;
private ID parentAC_ID;
public String email {get;set;}
public String sub {get;set;}
public String ebody {get;set;}

public ClaimFormController() {

Logo_URL = LeaseWareUtils.getLogoURL();

List<Aircraft_Eligible_Event_Invoice__c> AeeIn_list = [select id, Aircraft_Eligible_Event__c, Invoice_Amount__c, Invoice_Date__c,
Invoice_Type__c, MR_20_Month_C_Check__c, MR_APU__c,MR_Engine_1__c,MR_Engine_1_LLP__c,MR_Engine_2__c,
MR_Engine_2_LLP__c, MR_Engine_3__c,MR_Engine_3_LLP__c,MR_Engine_4__c,MR_Engine_4_LLP__c,
MR_Heavy_Maintenance_1_Airframe__c,MR_Heavy_Maintenance_2_Airframe__c,
MR_Landing_Gear__c, Name
from Aircraft_Eligible_Event_Invoice__c where id = :ApexPages.currentPage().getParameters().get('id')];


if (AeeIn_list.size() > 0)
{
Aee_In = AeeIn_list.get(0);
AeeIn_Id = Aee_In.id;

Aee_Id = Aee_In.Aircraft_Eligible_Event__c;
}

List<Aircraft_Eligible_Event__c> Aee_list = [select id, Aircraft__c, Balance_Amount__c, Initial_Claim_Amount__c,
CSN__c, Event_Type__c, Comments__c, Start_Date__c,End_Date__c,
Invoiced_Amount__c, TSN_N__c, Name
from Aircraft_Eligible_Event__c where id = : Aee_Id];

if (Aee_list.size() > 0)
{
Aee = Aee_list.get(0);
Aee_Id = Aee.id;

parentAC_ID = Aee.Aircraft__c;
}

List<Aircraft__c> Ac_spec = [select id,Logo__c, Aircraft_Type__c, Assigned_To__c, Country_Of_Registration__c,MSN_Number__c,
CSN__c, Cycles_Since_Last_C_Check__c, Lease__c,Approach_Landing_Cat__c,
Number_of_engines__c, Registration_Number__c,ETOPS__c,Line_Num__c,
Time_Remaining_To_Check__c,TSN__c,Time_Since_Last_C_Check__c
from Aircraft__c where id = :parentAC_ID];

if (Ac_spec.size() > 0)
{
parentAC = Ac_spec.get(0);
}



}


public Aircraft_Eligible_Event_Invoice__c getAee_In() {
return Aee_In;
}
public Aircraft_Eligible_Event__c getAee() {
return Aee;
}

public Aircraft__c getparentAC() {
return parentAC;
}

public string getLogo_URL()
{
return Logo_URL;
}

public PageReference sendPdf() {

PageReference pdf = Page.ClaimFormPDF;
// add parent id to the parameters for standardcontroller
pdf.getParameters().put('id',Aee_In.id);

// the contents of the attachment from the pdf
Blob body;

// returns the output of the page as a PDF
body = pdf.getContent();



Messaging.EmailFileAttachment attach = new Messaging.EmailFileAttachment();
attach.setContentType('application/pdf');
attach.setFileName('ClaimFormPDF.pdf');
attach.setInline(false);
attach.Body = body;

Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
mail.setUseSignature(false);
mail.setToAddresses(new String[] { email });
mail.setSubject(sub);
mail.setplainTextBody(ebody);
mail.setFileAttachments(new Messaging.EmailFileAttachment[] { attach });

// Send the email
Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail });

ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.INFO, 'Email with Claim Form sent to '+email));

return null;

}

}

this is the VF page:

<apex:page controller="ClaimFormController" renderAs="pdf">

<apex:stylesheet value="{!$Resource.CssStyleSheet}"/>
<table width="100%">
<tr width="50%" align="right">
<td width="50%" align="right">
<apex:image url="{!Logo_URL}" width="25%"/>
</td>
</tr>

<tr width="50%">
<td width="50%" align="left">
<apex:panelGrid columns="1" width="25%" styleClass="infobox">
<apex:outputText value="Claim Form # : {!Aee_In.Name}" />
<apex:outputText value=" Invoice Date : {!Aee_In.Invoice_Date__c}">

</apex:outputText>
</apex:panelGrid>
</td>

</tr>

</table>

<br></br>

<h1>Customer Information</h1>
<hr width="200"></hr>
<table width="100%">
<tr>
<td ><b>Customer: </b></td>
<td >{!parentAC.Assigned_To__c}</td>

<td ><b>Aircraft Type </b></td>
<td >{!parentAC.Aircraft_Type__c}</td>

</tr>

<tr>

<td><b>Invoice Type</b></td>
<td>{!Aee_In.Invoice_Type__c}</td>
<td ><b>MSN</b></td>
<td >{!parentAC.MSN_Number__c}</td>
</tr>

</table>
<br></br>
<br></br>

</apex:page>

and this is a part of the utility class where the URL is originally read:

public static String getLogoURL()
{
String url='';
Lessor__c[] lsr = getLessor();
Integer i=0;
for (Lessor__c ls:lsr)
{
i++;
System.debug('----------- LEASEWARE -------- LeaseWareUtils:getLogoURL i is '+i);

if (i==1) // these is a ghost item in this array that is returned, so return value in 1 position
url = ls.Lease_Logo__c;
}
System.debug('----------- LEASEWARE -------- LeaseWareUtils:getLogoURL Returning URL'+url);

return url;
}
public static Lessor__c[] getLessor()
{
Lessor__c[] thisLsr;
//find the Lessor details
thisLsr = [select id, name, Lease_Logo__c from Lessor__c];
System.debug('----------- LEASEWARE -------- LeaseWareUtils: Lessor is '+thisLsr);

return thisLsr;
}