For EE, you need to upload the Softcopy, so If they are providing PDF of the original copy, I believe that should be ok for you.. I don't think you need to take printout and then Scan again to make it a soft copy.. The Color combination may not match..
Don't think they will send you hardcopy, if you are ordering PDF.
BTW, as I saw in one thread, you may not need to upload the softcopies of ECA document and IELTS certificate after getting ITA, as CIC will directly verify those info with WES reference number and IELTS certificate number from respective organization.. But I am not sure about that as i didn't receive my ITA yet..