# Removing WOWZA evaluation purpose image from camera preview

**URL:** <https://community.wowza.com/t/removing-wowza-evaluation-purpose-image-from-camera-preview/47788>\
**Category:** Wowza GoCoder SDK\
**Created:** [December 5, 2016, 11:09am UTC](https://community.wowza.com/t/removing-wowza-evaluation-purpose-image-from-camera-preview/47788 "2016-12-05T11:09:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Crys.fmA](https://avatars.discourse-cdn.com/v4/letter/c/e480ec/32.png) [@Crys.fmA](https://community.wowza.com/u/Crys.fmA)\
**Post date:** [December 5, 2016, 11:09am UTC](https://community.wowza.com/t/removing-wowza-evaluation-purpose-image-from-camera-preview/47788/1 "2016-12-05T11:09:01Z")

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Hi, I created a sample app using [this](https://www.wowza.com/resources/gocodersdk/docs/1.0/intro-tutorial/)SDK documentation and I got my License Key for App ID after requesting access to the Wowza GoCoder™ SDK which is soon to be expired on December 30, 2016. Though I’m using my License key I’m still getting the WOWZA evaluation purpose image on the top right of camera preview. How do I remove that ?

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**Author:** ![Michelle\_B](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/michelle_b/32/394_2.png) [@Michelle\_B](https://community.wowza.com/u/Michelle_B)\
**Post date:** [January 4, 2017, 4:20pm UTC](https://community.wowza.com/t/removing-wowza-evaluation-purpose-image-from-camera-preview/47788/2 "2017-01-04T16:20:49Z")

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Hi,

Trial SDK license keys would always add the Wowza logo on the output stream. Once you have a purchased SDK license key, please ensure that you switch your SDK app to use this new key instead. It should then remove the overlay for you.

Michelle