Calling external web service (Fedex) from salesforce

Hi,

I am new to Apex development.

I would like to achieve the following,

1) writing a class to call Fedex web services (passing parameters for shipping adderss to fedex)

2) get the tracking number and print label (as a .pdf file) back from fedex.

and display it under salesforce.

Is it possible to do with Apex class?

I have tried to parse the Fedex WSDL but I was getting the following error,

Apex generation failed.

Error message:
Error: Unsupported WSDL. Operation 'deleteShipment' has more than one output element.

could someone help me to convert the Fedex WSDL to Apex standards so that I can generate Apex classes from that.

thanks

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