1. Creating Simple CustomQR Codes using http://mojiq.kazina.com and an image editor and the Library of Congress logo as an example prepared by tom c.
2. In this example, the pink text will be removed later leaving a blank area where the LoC logo will be added. Use an image editing program that uses layers to edit the QR code image and create the new custom code. Enter URL and click button to lock in the address. http://mojiq.kazina.com/ Enter dummy characters like zeros and choose their placement. Choose your colors. Choose the size and uncheck to remove reflection effect.
3. Remove the pink color from the original image and fill the space with white. Now create a new layer and paste in the logo. Adjust the size of the logo as needed.
4. Don’t forget to test the code on two or three devices to make sure it works. And now the code is ready to use.