@drillersmum85,
To pad text means to add extraneous wording, often to make word count (like if you need for an essay to be a particular length).
For example:
There was no real reason for Susan to fly to Barbados in order to meet David. (16 words long)
That's^ padded.
You can say the same thing with:
There was no reason for Susan to fly to Barbados to meet David. (13 words long)
or
Susan had no reason to fly to Barbados to meet David. (11 words long but there's a slight change in meaning)