@Software Developer Thanks for the details, Here is the link to Quickstart: Use the Read client library or REST API. We are able to execute the quick start successfully. The source code for this sample can be found on the github link.
There is a brand new online portal provided by Microsoft to test this service, among others, without developing (but it will use your own Azure resources): https://preview.vision.azure.com/demo/OCR
The advantage is that it will directly list your available resources so you just have to pick the right one, then you test, and there are also some samples.