How to adjust column widths in Visualforce to PDF email attachment?

I wish to send a visualforce page as an email PDF attachment to user. The problem I am facing is that the columns don’t fit in the PDF. Hence I sent the PDF in landscape mode. After that, some extra columns fit but not all.

I need to fit one extra column in the PDF attachment. Please guide. Thank You!

Screenshot:

Things that didn’t work.

• I set the <apex:pageBlockTable style="width:60%;"> – It reduces the width of table in VF page but not in PDF.
• I set the column widths for each individual columns <apex:pageBlockTable columnsWidth="10%,10%,10%">
• I reduced the cell padding <apex:pageBlockTable cellPadding="1">
• I tried zooming out the table. It zooms out for VF page but not for PDF attachment.
• I tried reducing the side margins of the PDF file. After putting negative margin to the table through css, the first column gets cutoff but the margin of the PDF file does not disappear.
• 

VF Page Datatable Code.

<apex:pageBlockSection Title="Rate Profile"  columns="1"  rendered="{!RateListTable.size!=0}" collapsible="True">
                <apex:pageBlockTable value="{!RateListTable}"  var="Rate" id="RateTable" style="width:100%;" cellPadding="4" border="1" >   
                    <apex:column headerValue="Product Type" value="{!Rate.ProdType}" /> 
                    <apex:column headerValue="Service Type" value="{!Rate.ServiceType}" /> 
                    <apex:column headerValue="Category" value="{!Rate.Category}" /> 
                    <apex:column headerValue="Usage Type" value="{!Rate.UsageType}" /> 
                    <apex:column headerValue="MDM ID" value="{!Rate.ProdMDMID}" /> 
                    <apex:column headerValue="Product Name" value="{!Rate.ProdName}" />
                    <apex:column headerValue="Delineation" value="{!Rate.DelType}" />
                    <apex:column headerValue="Delineation Value" value="{!Rate.DelVal1}" />
                    <apex:column headerValue="From" value="{!Rate.FromVal}" />
                    <apex:column headerValue="To" value="{!Rate.To}" />                   
                    <apex:column headerValue="Rate" value="{!Rate.Rate}" />
                    <apex:column headerValue="Rate Frequency" value="{!Rate.RateFreq}" />
                    <apex:column headerValue="PPA" value="{!Rate.PPA}" />                        
                    <apex:column headerValue="Message" value="{!Rate.Message}" />
                </apex:pageBlockTable>
</apex:pageBlockSection>

Code to send email.

public PageReference EmailRateSheet() {        
        PageReference rateProfile =  ApexPages.currentPage(); //get the current page reference
        rateProfile.setRedirect(true); //set the redirect property to true to avoid the page resubmission warning
        Messaging.EmailFileAttachment attachment = new Messaging.EmailFileAttachment(); //create attachment
        attachment.setFileName('RateProfile for ' + CustomerRec.Name + '.pdf'); //set the file name of attachment
        attachment.setBody(rateProfile.getContentAsPDF()); //set the pdf version of the page in body of the attachment
        Messaging.SingleEmailMessage message = new Messaging.SingleEmailMessage(); //create SingleEmailMessage object
        message.setFileAttachments(new Messaging.EmailFileAttachment[] { attachment } ); //set the attachment to the email
        message.setSubject('Rate sheet for ' + CustomerRec.Name); //set subject of the email
        message.setHTMLBody('Hi '+ userInfo.getFirstName() + ', <p>' +' The Rate sheet for <b>' + CustomerRec.Name + '</b> is attached. <p> Regards,<P> Salesforce Team'); //set body of the email
        message.setToAddresses( new String[] { UserInfo.getUserEmail() } ); //set the email address of the logged-in user as recipient address
        Messaging.sendEmail( new Messaging.SingleEmailMessage[] { message } ); //send the email
        return rateProfile; //return the page reference. If you return null, page resubmission warning will appear on refreshing the page.
    }