# QR quality settings ### Size Here you can set the size (in pixels) of how big you wan the QR code to be when you download it. You can read more about the [Minimal size here](/questions-and-answers/about-qr-codes-in-general/what-is-the-minimum-size-of-a-qr-code.md), so your customers are always able to scan the QR code when you’ve printed it. ### Margin size This means it will create a nice border around your QR code with your QR code in the center, if you edit the background color you can create a cool border around your custom QR code. ### Error correction capability The error correction capability settings come in handy when you’re [customising your QR code](/guides/customise-a-qr-code.md) and still want to be able to scan the QR code. If your QR code stopped working after customisation you can increase the settings and test again, keep increasing until you found the right settings for your custom QR code. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.sqr.co/guides/qr-quality-settings.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.