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HoopAI forms include a built-in signature field that lets contacts draw or type their signature directly inside the form. The signature is captured as an image, stored with the submission, and verified with a cryptographic hash to confirm that the signature has not been altered after the fact.

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Adding a signature field

  1. Open the form in the builder.
  2. Locate the Signature field type in the left panel under Custom Fields.
  3. Drag it onto the canvas and position it where the signature should appear — typically near the end of the form, after any terms or agreement text.
  4. Click the field to configure the label (for example: “Please sign below to confirm your agreement”).
  5. Save the form.
You can add more than one signature field to a single form if you need initials or multiple acknowledgments.

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How the signature pad works

When a contact reaches the signature field, they see a blank canvas with a line at the bottom. They can:
  • Draw their signature using a mouse on desktop, or their finger or stylus on a mobile or tablet
  • Clear and redraw using the Clear button if they make an error
The signature pad is responsive and works across all modern browsers and devices. Touch-based signing on mobile is fully supported.

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Verification and tamper detection

When the form is submitted, HoopAI generates an encrypted hash of all submitted form data at the time of signing. This hash is displayed below the signature in the submission record. If the submission is later downloaded as a PDF, the time of signing and the hash are both included in the document. This hash acts as a verification fingerprint — any modification to the document after signing would produce a different hash, confirming that the original signed version is authentic. This method provides a practical audit trail suitable for most business agreement, consent, and acknowledgment use cases.

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Downloading signed submissions as PDF

Individual submissions that include a signature can be exported as a PDF:
  1. Go to Sites > Forms > Submissions.
  2. Find the submission that includes the signature.
  3. Click the download icon and select Download as PDF.
  4. The PDF includes all submitted field values, the drawn signature image, the timestamp, and the verification hash.
This PDF serves as your record of the signed agreement.

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Differences from the Documents and Contracts feature

HoopAI also has a separate Documents and Contracts feature (accessible from the left navigation menu) that provides a more formal e-signature experience with a full audit trail, signer identity verification, and a legally defensible signing certificate that includes the signer’s IP address, device, and timestamp. The two features serve different purposes: For consent checkboxes, intake acknowledgments, coaching agreements embedded in onboarding forms, and similar use cases, the form signature field is sufficient. For contracts requiring legal enforceability and detailed signer records, use Documents and Contracts.

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Common use cases

Coaching intake with consent Collect a client’s goals, health history, and consent to terms in a single intake form, with a signature confirming they have read and agree to the terms of service. Event liability waiver Include a waiver text block and signature field in an event registration form. Every registrant signs before their information is saved. Membership agreement Combine a membership terms section with a signature field so the signed acknowledgment is captured the moment someone signs up. Photo/video release Collect a media release authorization alongside a contact request form.
Place a Terms and Conditions field directly above the signature field so the contact must read and check the terms box before signing. Configure the terms field as required. This combination of a terms checkbox plus a signature provides a clear record of informed consent.
Last modified on March 5, 2026