Hover using javascript

Apologies, that is certain number of characters.

And I have tried the Floating text on PDF documents which is advised by Karl Heinz Kremer and sent for the client review.

I didn't get any update from the client side.

Thanks for the quick response.

I am having a text box field. So, whenever the user hover the text field the following text should be shown "Please fill the data which is highlighted on page 3. This we are unable to insert in tooltip because tooltip only allows certain characters. So, i need to do it another way and without adding any button on it. Can anyone help with this?

If the tooltip is not enough, see here for a tutorial about how to do this: Floating Text on PDF Documents - KHKonsulting LLC

For a field just use the tooltip property (under Properties - General).

For an icon (I assume you mean an image) you can add a transparent button over it and then set its tooltip and it will appear when you hover above it.