I cant manage to attach a PDF to a link on the actual form or the Thank You page

I cant manage to attach a PDF to a link on the actual form or the Thank You page.

Also I tried uploading the PDF to the confirmation email in the Recipient section and it just keeps loading forever and doesnt do anything. The PDF is 1.02mb.

Would you have a quick outcome, I need this asap.

I also added the PDF to my dropbox and put the in a link in a text box, but it there is an automatic pop up page on dropbox that shows up and it looks unprofessional. 

Thanks

Apologies for the inconveniences this may have caused to you. 

I have been testing the attachment feature on emails and I can see it works on my end: 

I would recommend you to please try removing the spaces from your file's name since that might be causing the issue. 

If possible, please redo the email auto-responder and try attaching the email again. 

How-to-Delete-Notifications-Autoresponder

Setting-up-an-Autoresponder-Email

In case you're still experiencing the issue, please send us the file you're trying to attach on your email so we can test on our end too, please send it to support@mail.com. 

We will be glad to further investigate this. 

It seemed to be the pace yes, thank you!
...