Hello,
Please send to contact[at]phpdocx.com the username or e-mail of the user that purchased the license.
Also, please attach the most simple template and script that illustrates your issue. We need to run it, so the script shouldn't call external resources (such as databases or web services).
We only have seen that extra blank spaces when Tidy is missing or not enabled, so we need to check your template and script to find the source of your issue.
Regards.