@Kenny Perroni Thanks for the feedback. We have forwarded this feedback to our product team, You can also raise a user voice request here so the community can vote and provide their feedback, the product team then checks this feedback and implements the same for Canada region. For Region availability please check the following link
For custom vision service you control over the storage and deletion of any customer data that store as part of the service. Please follow the below for privacy and compliance. As with all of the Cognitive Services, developers using the Custom Vision service should be aware of Microsoft's policies on customer data. See the below Cognitive Services page on the Microsoft Trust Center to learn more.
https://azure.microsoft.com/en-us/support/legal/cognitive-services-compliance-and-privacy/
The Computer vision Read service support PDF document as images. Here is the link for vision best practice and samples. Also the Form Recognizer supports OCR and PDF documents with AI builder.