topic Re: In-Person SDK for Android- how to get signature image? in Integration and Testing

In-Person SDK for Android- how to get signature image?

krobson — Fri, 19 May 2017 19:07:09 GMT

We are buildling a mobile checkout app.

We have everyting working now except can't seem to get the signature image back from the transaction response.

We need access to that image to add to our POS record of the transaction.

We passed "true" to the startEMVTransaction call.

EMVTransactionManager.startEMVTransaction(emvTransaction, emvTransactionListener, this, true);

But signature attribute in response continues to be blank.

Suggestions?

Also, is there a way to get the signature later through transaction API?

Thanks,

Kurt

Re: In-Person SDK for Android- how to get signature image?

RichardH — Mon, 22 May 2017 15:22:06 GMT

Hello @krobson

The signature is currently provided via the merchant email receipt and is not stored at the gateway.

You are welcome to post this as a new feature using our Ideas forum. This will allow others to vote on and make suggestions to improve the request.

Richard

Re: In-Person SDK for Android- how to get signature image?

krobson — Mon, 22 May 2017 16:46:49 GMT

Hi Richard -

Thanks for your reply.

The SDK documentation tells that the signature image is available in the transaction response. But we are not seeing it in the response. is this a bug? if so, how do we escalate it? We need to get it from the SDK so we can store it.

From SDK overview:

Step 4.The SDK returns "end of transaction" data to the POS application, including success/failure, authorization code, signature image, and EMV tags.

http://developer.authorize.net/api/reference/features/in-person.html

Thanks,

Kurt

Re: In-Person SDK for Android- how to get signature image?

RichardH — Mon, 22 May 2017 17:04:00 GMT

Hello @krobson

The signature image should be returned in the transaction response from the SDK, but you cannot query for it later as it is not stored.

Is this occuring in the sandbox or production. Which mobile device are you using with the reader?

Richard

Re: In-Person SDK for Android- how to get signature image?

krobson — Wed, 24 May 2017 16:37:10 GMT

We are using Anywhere Commerce C2X, purchased from auth.net POS portal.

I am using a Samsung Galaxy Tab E. It's a new tablet purchased around christmas time.

The problem occurs in both sandbox and production (I have 2 C2X devices, one for each).

My developer in Vietnam has run the app in the debugger and claims that the response object contains no signature (value is blank or null). He also added an alert to display the value and it shows blank.

How can I get help to debug this? Is there any way to escalate this issue and get live development support?

Thanks,

Kurt

Re: In-Person SDK for Android- how to get signature image?

RichardH — Wed, 24 May 2017 16:54:42 GMT

Hello @krobson

I've made additional inquiries regarding your issue and am waiting for a response. I would also suggest opening a case with customer support since you are experiencing this with your production account. If you send me the case # via private, I can ensure it's routed properly to our mobile specialist.

Richard

Re: In-Person SDK for Android- how to get signature image?

krobson — Wed, 24 May 2017 17:41:30 GMT

ok great. I will do that. thanks.

Re: In-Person SDK for Android- how to get signature image?

krobson — Wed, 24 May 2017 18:14:57 GMT

e-ticket number is: 1-416320881

I attached our source code to that e-ticket in case someone is able to spot the problem from that.

Re: In-Person SDK for Android- how to get signature image?

RichardH — Wed, 24 May 2017 18:59:28 GMT

Hello @krobson

Thanks, I've escalated your ticket to a specialist.

Richard

Re: In-Person SDK for Android- how to get signature image?

RichardH — Thu, 25 May 2017 01:37:24 GMT

Hello @krobson

Could you please try the updated SDK at https://github.com/AuthorizeNet/inperson-sdk-android/tree/QuickChip and let us know if this solves your issue. If it does, we'll merge into the main branch.

Richard

Re: In-Person SDK for Android- how to get signature image?

krobson — Fri, 26 May 2017 20:11:12 GMT

Hi Richard - yes it worked! We got a signature string back. thank you. Please do merge the fix into production version.

I'd like to ask what format that string is in. Base 64?

Thank You,

Kurt

Re: In-Person SDK for Android- how to get signature image?

krobson — Fri, 26 May 2017 20:12:05 GMT

Hi Richard - yes it worked! We got a signature string back. thank you. Please do merge the fix into production version.

I'd like to ask what format that string is in. Base 64?

Thank You,

Kurt

Re: In-Person SDK for Android- how to get signature image?

RichardH — Fri, 26 May 2017 20:41:14 GMT

@krobson The image is base 64 encoded string.

Richard

Re: In-Person SDK for Android- how to get signature image?

krobson — Sat, 03 Jun 2017 01:07:22 GMT

That fixed it! thanks.

Re: In-Person SDK for Android- how to get signature image?

danielcarter — Wed, 24 Sep 2025 10:02:15 GMT

To retrieve the signature image from the In-Person SDK on Android, make sure of the following: You're passing true for collectSignature in startEMVTransaction – which you're already doing. The transaction must require a signature. If it's not needed based on card type or amount, the SDK may skip signature capture. Ensure you're checking the EMVTransactionResponse.getSignature() method after the full transaction completes. If the signature is still blank: Double-check if the card network or terminal config is bypassing signature due to low-risk transaction. Also, some SDK versions only return the signature after batch settlement, not immediately. As for retrieving it later: Yes, some providers offer an API (via Transaction ID) to fetch transaction details, including the signature image if captured. You’ll need to check your payment processor’s transaction management API or portal for this feature. If you're still stuck, consider reaching out to the SDK provider with logs to confirm signature capture is supported for your flow.

Re: In-Person SDK for Android- how to get signature image?

danielcarter — Sat, 27 Sep 2025 07:04:07 GMT

If the `signature` field in the EMV transaction response is blank, it usually means **signature capture wasn't triggered** or completed during the transaction. Try this: * Ensure the card type and transaction **require a signature** (some don’t under EMV rules). * Check if your device **supports signature capture** natively. * Confirm signature capture is **enabled in SDK/device settings**. You **cannot retrieve the signature later** via the transaction API if it wasn’t captured during the transaction. The image must be collected at the time of the transaction and saved locally or via callback. Double-check the EMVTransactionListener — the signature may be returned through a separate method like `onSignatureCaptured()` depending on SDK version.