Hello, my name is Rusty. Sorry for the delay. Your Kindle uses MOBI files, it cannot read .pdf files. Click here. This will convert the .pdf to MOBI for use on your Kindle.
Yes, it still applies. Kindle uses MOBI files, which are completely different. Kindle doesn't use Microsoft, it's an Android, so it doesn't have the capability. Run the .pdf file through the free converter, click here.