dynamically display Text on adobe sign doc depending on if field is populated

I am using the Salesforce Adobe Sign Integration.  From what I have tested, text fields in  adobe sign word template will only display a max of 4,000 characters.  so in the instance i need for example 15,000 characters, I need to create several fields.  My requirement is for example to display fields only if populated and not to have a bunch of space or extra blank pages on a document if for example, one of the fields is not populated.  I have not found a way using field tags on the word doc so, if a field is not populated it does not take up space in the doc.  For instance, if there is very little or no text in the fields, the text output should all show on the same page vs if all fields are fully populated, they appear on different pages and the text output from different fields does not overwrite each other.