How can I merge my uploaded file link into an Infusionsoft email?

I have integrated Infusionsoft with my form and would like the uploaded file link to be sent to a customer in an Infusionsoft email.  I mapped the file upload field to a custom field and have hyperlinked the download now call to action in my email with the merge field, but the link extension gets cut off.  I have tried a text area custom field but it is still cutting off the end of the file extension.

Any suggestions?

It seems that the issue is regarding the mail merge of the hyperlink. Since this issue occurs on Infusionsoft's side, I believe they will be able to help you better with setting up a link to your infusionsoft email correctly. You can check out their support forum here: http://community.infusionsoft.com/ 

Here's a thread that I found on adding unique URLs: http://community.infusionsoft.com/showthread.php/20280-Email-Broadcast-with-Unique-Attachments?highlight=merge+hyperlink 

You can also check out this guide on adding links to emails: Add Links To Emails
Regards.