Can I hide text field on the PDF if the signature is not filled?

can i hide text field on the pdf? if they don't fill the signature its not appear, but the text also i want to hide on the pdf,can i do it?

Unfortunately, there is no direct way to show/hide the fields on the PDF file based on conditions. However, you may consider creating two PDF documents in the PDF editor with and without text fields as per your requirement and send them to the notifications/autoresponders based on conditions.

https://www.jotform.com/help/167-How-to-Send-Email-Based-on-User-s-Answer

Hope this information helps!