JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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.
What kind of documents would you like to add to the form? If you want to embed a PDF to your form then you can use this widget called PDF Embedder.
If you want to embed another webpage or another form, then you can use the Iframe Embed widget.
If this not what you need then please get back to us and provide more information so that we can assist you properly. Thank you.