Problem

I am not able to open pdf & document attachments in the form from my clients. 
Please let me know how to fix this.

Hi there,

Happy to help!

Are you referring to the PDF and document attachments your form respondents have uploaded to your form?

If so, please uncheck the following boxes in your Account Settings: https://jotform.com/myaccount/settings

And please let us know if the issue persists.