i'm trying to upload some files and store these on the controller and eventually send these. The error i get back is "Maximum view state size limit (135KB) exceeded. Actual view state size for this page was 772.562KB". I need to be able to be able to store some blobs (upto 5mb of files extracted from attachments, files on c: and documents) on the controller, but the view state size seems to preclude this. The following is the simplest possible code to illustrate the problem at hand (a file is select, the savex operation causes bound variables to load, the page refreshes and exceeds limits) and a solution to this would enable me to address my actual code (too long to post). I would appreciate any help that could be given. 

thank you.

public withsharingclass docController {

public document document {get; set;}

public docController() {

        document =new document();

    } 

publicvoid savex()    {    }

}

<apex:page controller="docController">     <apex:messages />    

<apex:form id="theForm">       <apex:pageBlock >          

 <apex:pageBlockSection >             <apex:inputFile value="{!document.body}" filename="{!document.name}"/>                         <apex:commandButton value="Save" action="{!savex}"/>          

 </apex:pageBlockSection>        </apex:pageBlock>    

 </apex:form>

</apex:page>