How to Add an E-Signature Field to a LiveCycle Dynamic PDF Form
Question details
The user needs to insert an electronic signature field into a dynamic PDF form authored in Adobe LiveCycle.

- Product
- Adobe LiveCycle
- Device & OS
- not provided
- Scenario
- Creating or editing a dynamic PDF form and adding an option for end-users to electronically sign the document without flattening it.
- Observed behavior
- The form author requires a functioning digital signature field that operates correctly within an XFA-based dynamic document, as external signing tools may flatten the form.
Ensure you have access to Adobe LiveCycle Designer or AEM Forms Designer, and verify that your dynamic XFA form is saved and ready for layout editing.
Insert a Signature Field Using the Object Library
The standard method for adding a signature option in LiveCycle or AEM Forms Designer is to drag a native signature field directly from the Object Library.
XFA signature fields function similarly to standard signature fields in static PDFs, allowing users to digitally sign the document without breaking the dynamic form structure.
It is generally advised to avoid using Adobe Sign for this specific integration, as it tends to flatten PDF forms and does not work reliably with XFA-based dynamic documents.
Launch Adobe LiveCycle Designer or AEM Forms Designer and open your existing dynamic XFA form project.
Navigate to the top menu to open the Object Library, or simply press the 'Shift + F12' keyboard shortcut for quick access.
Scroll through the available elements in the Object Library palette until you find the 'Signature Field' tool.
Click and drag the signature field onto the desired location on your dynamic PDF layout, then adjust its size as needed.
Save your form project to ensure the electronic signature functionality is permanently applied to the document.

Easily Add E-Signatures to Standard PDFs Using WPS Office
While dynamic XFA forms require specialized Adobe software, you can easily create, fill, and sign standard static PDF forms using WPS PDF. It provides a simple, secure, and highly compatible way to manage electronic signatures.
- 1. Open your standard PDF document: Launch WPS Office and open the standard PDF form you wish to sign.
- 2. Navigate to the Fill & Sign tools: Click on the 'Fill & Sign' or 'Protect' tab located on the top ribbon menu.
- 3. Create your electronic signature: Click on 'Sign' and select 'Create Signature'. You can draw, type, or upload an image of your signature.
- 4. Place and save: Click anywhere on the document to place the signature, adjust its size, and save your signed PDF file.

Frequently Asked Questions
Why does Adobe Sign flatten my dynamic PDF form?
Adobe Sign processes documents in a way that often flattens interactive XFA elements to ensure signature security across basic viewers. For dynamic documents created in LiveCycle, you must use native XFA signature fields from the Object Library instead.
Can I use static signature fields in an XFA dynamic form?
Yes, native XFA signature fields added via the Object Library function similarly to the signature fields found in static PDFs, enabling users to digitally sign the document while preserving the form's dynamic capabilities.
How do I quickly open the Object Library in LiveCycle Designer?
You can instantly access the Object Library in Adobe LiveCycle Designer or AEM Forms Designer by using the keyboard shortcut 'Shift + F12'.




