There is 'Insert' tab at the top of the word document. In any other OS you can get it installed.

If you are using windows then it comes pre-installed. Open the Word document that you want to insert arrows. The steps are the same irrespective of the OS you are using and therefore should be applied in the same manner to get the work done. It is advised to follow the steps are they are to get the output as mentioned. The steps which are to be followed in relation to subjected question are as follows. Part 1: How to Insert Arrows in Word Part 2: Advantages of PDF Format Part 3: How to Insert Arrows in PDF Documents