If you deliver goods or do field service, you’ve probably had this conversation:
“We never received that delivery.” “I have it signed.” “Anyone could have signed that. How do I know it was actually delivered to my address?”
That last sentence is the one that costs you money. Without GPS proof on the signature, you’re stuck arguing about whether the customer’s name on the line was actually written by your customer at their location. With GPS proof, the conversation ends.
What GPS proof on a signature is
When a customer signs on an iPad or phone in person, the device knows where it is. It’s already pulling location data for maps, weather, ride-share apps. A modern signature capture app can grab those coordinates at the moment of signing and stamp them onto the signed PDF as metadata.
The result is a signed document that says, in addition to the signature image and timestamp, “this signature was captured at latitude X, longitude Y, at this time.” If the customer’s billing address is 123 Main Street and the signature shows latitude/longitude that’s within fifty feet of 123 Main Street, the dispute is over.
What it protects against
Disputed deliveries
The most common case. A customer claims they didn’t receive an order. You have a signed delivery ticket. Without GPS, the customer’s lawyer can argue the signature was forged, the delivery was made to the wrong address, or the goods were dropped off at the curb. With GPS, all of those arguments evaporate.
Insurance claims
When something goes missing in transit (a stolen pallet, a damaged shipment), insurance carriers want evidence of where exactly the chain of custody ended. A GPS-stamped signature is exactly that evidence. It speeds up claims processing and reduces back-and-forth with adjusters.
Employee accountability
Less talked about but real. If you have drivers or reps who occasionally fudge their delivery records (signing things at the warehouse and claiming they delivered them), GPS metadata catches it instantly. The signature is stamped at the warehouse coordinates, not the customer’s coordinates. Honest drivers love this. Dishonest drivers leave.
Audit and compliance
In regulated industries (controlled substances, medical equipment, food), regulators want a documented chain of custody. GPS-stamped delivery confirmations are stronger evidence than a signature alone. They reduce audit risk and shorten compliance reviews.
Court
Electronic signatures with GPS metadata are admissible evidence under the ESIGN Act in the United States and equivalent legislation in Australia, New Zealand, the UK, and Canada. They satisfy the “intent to sign” and “association” requirements that paper signatures meet, with the added forensic strength of location data. In the rare case a delivery dispute escalates to court, your case is much stronger.
What it doesn’t protect against
Worth saying plainly. GPS proof doesn’t help if:
- The signature is captured at a location other than the delivery address. A customer who signs for a delivery at your office, for example, instead of at their site. The GPS stamp will show your office, not theirs.
- The customer’s billing address differs from the delivery address. You need to compare GPS to the delivery address, not the billing address.
- The phone or tablet has location services disabled. No location, no proof. Most signature apps handle this by either prompting the user to enable location or recording “no GPS available” on the document.
These are edge cases. Configure your signature capture process so you don’t run into them.
How to capture GPS on signatures
You need three things:
- A signature capture app that supports GPS. Most do, but some pretend to (they capture location only on app open, not at the moment of signing). Verify by signing a test document and checking the metadata on the resulting PDF.
- Location services enabled on the device. iPads and Android tablets need this turned on for the signature app specifically.
- A workflow where the signature is captured at the delivery address. This sounds obvious but in practice some shops capture signatures at the customer’s office or at the warehouse, which defeats the purpose.
How Billet handles GPS proof
Billet captures GPS coordinates at the exact moment the customer’s finger lifts off the iPad screen. The coordinates are stamped onto the signed PDF metadata, displayed on the document, and stored with the delivery ticket. If the device doesn’t have location available at the signing moment, Billet falls back to the most recent reading from within the last few minutes (configurable). The GPS data flows back to your accounting tool along with the signed PDF.
$5 per active user per month, GPS-stamped signatures included on every plan.
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