Hello @Patryk Leśniewski , Thanks for using Microsoft Q&A Platform.
As we know the Azure AI Translator Service has both character and array limits for text and document translation. Try to check these service limits based on the pricing tier to avoid out-of-quota errors: https://learn.microsoft.com/en-us/azure/ai-services/translator/service-limits
To use the $10 per million chars of standard translation you must upgrade your Azure free account to a pay-as-you-go subscription in order to increase quotas or limits.
Here is the documentation to learn more about the Azure free account: https://azure.microsoft.com/en-us/pricing/offers/ms-azr-0044p/
Regarding the documentation sorry for the inconveniences, I believe quick starts document should be able to guide you clearly: https://learn.microsoft.com/en-us/azure/ai-services/translator/quickstart-text-sdk?pivots=programming-language-python
You can also translate documents in language studio which is in preview without writing a code.
I hope this helps.
Regards,
Vasavi
-Please kindly accept the answer and vote 'yes' if you feel helpful to support the community, thanks.