|pdf's are more secure than Word documents, but I'm sure your recipient has his her reasons. You said "I've tried everything it seems and nothing works really" but you haven't said what you've tried.|
The only way to do what you want it use a third-party program to convert.
"So won’t you give this man his wings
What a shame
To have to beg you to see
We’re not all the same
What a shame" - Shinedown