First click on the Microsoft Office button or on the ‘File’ tab in the upper left hand corner and choose Word options. 

Select the ‘Save’ tab on the left. Tick ‘Embed fonts in the file’.

Word 2003 On your tool bar, click on ‘Tools’ and then select ‘Options’. Select the ‘Save’ tab (shown below) and tick the box where it says ‘Embed True Type Fonts’. 

Click ‘OK’ and then save the file to save the changes.