I sent it to you as a message, anyway if you want to post a PDF file , these are the things to do –
Go to your Dashboard and under that click on Posts – Add New, Below the title you will find a small icon called ‘upload Media’ , click on that and upload ur pdf file.. Hope this helps..and sorry my message dint reach you on time…
Parametrics 
Hi, Meena, can you tell me how to post the PDF ? Thank you! Sheng
Did you get my message?
No, you sent to where?
I sent it to you as a message, anyway if you want to post a PDF file , these are the things to do –
Go to your Dashboard and under that click on Posts – Add New, Below the title you will find a small icon called ‘upload Media’ , click on that and upload ur pdf file.. Hope this helps..and sorry my message dint reach you on time…