How to Sign PDF Forms with a Stylus on Touchscreen Devices
Question details
The user wants to allow customers to sign PDF form fields directly on touchscreen laptops or tablets using an active stylus, rather than using external signature pads.

- Product
- Adobe Acrobat XI
- Device & OS
- not provided
- Scenario
- Transitioning from external USB signature pads to direct on-screen stylus signing for customer PDF forms.
- Observed behavior
- Requires a compatible software and hardware configuration to enable stylus-based electronic signatures directly on touchscreen devices.
Ensure your touchscreen device fully supports active stylus input, and check that your current PDF software has the necessary updates or plugins to handle direct on-screen signatures.
Use SigPlus Pro Tablet Software for Adobe Acrobat
Utilize compatible third-party signature software like SigPlus Pro Tablet to bridge the gap between Adobe Acrobat and touchscreen stylus inputs.
For organizations using Acrobat XI that want to move away from external signature pads, Topaz offers specialized software designed specifically for touchscreen and active stylus inputs.
This allows customers to sign directly on the tablet screen just as they would on a dedicated pad, keeping your existing workflow intact.
Contact your Topaz representative to confirm that your specific touchscreen hardware and Adobe Acrobat XI version are fully compatible with SigPlus Pro Tablet software.
Purchase and download the SigPlus Pro Tablet software. Note that this software typically requires a paid license (approximately $180).
Install the software on your touchscreen laptop or tablet and follow the on-screen instructions to integrate it with Adobe Acrobat.
Open your PDF form in Adobe Acrobat XI, tap the designated signature field, and have the customer sign directly on the screen using the active stylus.

Sign PDFs Effortlessly with WPS Office
WPS Office offers robust, built-in PDF editing and signature tools, allowing you to easily sign documents on touchscreen devices without needing expensive third-party plugins.
- 1. Open the PDF File: Launch WPS Office and open the PDF document that requires a signature.
- 2. Access Signature Tools: Navigate to the 'Insert' or 'Protect' tab on the top ribbon and select 'PDF Signature' or 'Sign'.
- 3. Draw Your Signature: Click 'Create Signature', switch to the 'Draw' tab, and use your active stylus or touchscreen to write your signature directly on the screen.
- 4. Apply Signature to the Document: Click 'OK', then tap on the specific form field or area in the document where you want the signature to appear.
- 5. Save the Signed PDF: Adjust the size of the signature if necessary, then save the document to finalize the electronic signature.

Frequently Asked Questions
Can I use a regular capacitive stylus to sign PDFs instead of an active stylus?
Yes, you can use a regular capacitive stylus or even your finger. However, an active stylus offers better precision, pressure sensitivity, and palm rejection, providing a much more natural and accurate writing experience on touchscreens.
Do I absolutely need to buy expensive software to sign PDFs on a tablet?
Not necessarily. While specialized bridging software like Topaz SigPlus Pro is an option for older legacy setups, modern PDF editors like WPS Office include built-in freehand signature tools that work perfectly with touchscreens right out of the box.
Are electronic signatures drawn with a stylus legally binding?
In most jurisdictions, electronic signatures drawn with a stylus on a screen carry the same legal weight as a physical pen-and-paper signature, provided the software meets local e-signature regulations and intent to sign can be proven.
Why is my active stylus not working properly in Adobe Acrobat XI?
Older software versions like Adobe Acrobat XI have limited native support for modern touchscreen stylus inputs. To resolve this, you may need third-party plugins, or you can consider upgrading to a newer, touch-optimized PDF editor.




