What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
If your form is the whole contract or agreement that needs to be signed, then you can simply use the e-signature widgets that we have here: https://widgets.jotform.com/search/signature. To add a widget, you can follow this guide: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-your-Form
If you wish to upload a document and let them download it for signing, then you can follow the steps below:
1. Upload it on a file storage service like Dropbox or Google Drive,
2. Then add the download link using the "Text" field.
3. Now after then sign it, they will need to re-upload it to your form, you can add a file upload field in your form for that:
Here's a guide on how to create an upload form: https://www.jotform.com/help/332-How-to-Create-Upload-Forms
I hope that helps. Do let us know if you need more assistance on this.