1. Prerequisites

1. Active Azure Subscription

2. Azure AI Translator Resource in one of the supported regions. 

This would give you the subscription key, region key, and the document translation API endpoint.

Examples of supported regions:

1. West Europe

2. North Europe

3. East US

4. West US

5. Southeast Asia

6. Japan East

7. Australia East

(Some regions do not support Translator.)

3. Tier requirements:

1. Text Translation: S0 or higher
2. Synchronous Document Translation: S1 or higher
3. Batch Document Translation: S1 or higher

4. Azure Blob Storage Account (Batch Only)

Only required for batch document translation:

1. One container for source files
2. One container for output files
3. SAS URLs for both containers

2. Supported Document Formats

                                                                                                                           

                                                                                    

Format Type	Extensions	Batch Support	Sync Support	Notes
PDF	.pdf	✔	X	OCR-based translation for scanned PDFs - only in batch
Word	.doc, .docx	✔	✔ (.docx only)	Legacy .doc converted to .docxin batch
Excel	.xls, .xlsx	✔	✔ (.xlsx only)	Legacy .xls converted to .xlsxin batch
PowerPoint	.ppt, .pptx	✔	✔ (.pptx only)	Legacy .ppt converted to .pptxin batch
Plain Text	.txt	✔	✔	UTF-8 encoded
CSV	.csv	✔	✔	Comma-delimited
Tab-separated	.tsv, .tab	✔	✔	Tab-delimited
HTML	.html, .htm	✔	✔	Web page markup
MHTML	.mhtml, .mht	✔	✔	Web archive; multipart/related content-type
Markdown	.md, .markdown,   .mdown, .mkdn, .mkd, .mdwn, .mdtxt, .mdtext, .rmd	✔	X	Only batch mode
OpenDocument Text	.odt	✔	X	Legacy .odt converted to .docxin batch
OpenDocument Presentation	.odp	✔	X	Legacy .odp converted to .pptxin batch
OpenDocument Spreadsheet	.ods	✔	X	Legacy .ods converted to .xlsxin batch
Outlook Email	.msg	✔	✔	Single document or batch
XLIFF	.xlff       .xlf       .xliff	✔   (.xlff only)	✔   (.xlf .xliff only)	XML Localization Interchange File Format
Rich Text Format	.rtf	✔	X	Legacy .rtf converted to .docxin batch

3. Authentication

1. Global resource:

2. Regional resource: 

4. Useful Links

Azure AI Translator documentation - quickstarts, tutorials, API reference - Azure AI services | Azure Docs

1. Required methods:

Text and Document APIs are separate features. Document API: Azure Document Translation Not Available – Only Text Translation Resource Created - Microsoft Q&A

1. Text: Text translation REST API reference guide - Azure AI services | Azure Docs
   1. Translate Text 

Translator Translate Method - Azure AI services | Azure Docs

2. Detect Language 

Translator Detect Method - Azure AI services | Azure Docs

3. Get Supported Languages 

Translator Languages Method - Azure AI services | Azure Docs

2. Document: Document translation REST API reference guide - Azure AI services | Azure Docs

Quickstart: Document translation REST API - Azure AI services | Microsoft Learn

1. Translate Single Document - synchronous
   Synchronous Azure AI Translator translation REST API guide - Azure AI services | Azure Docs

2. Translate Batch Documents - asynchronous

Start translation - Azure AI services | Azure Docs

3. Get Supported Document Types 
   What is Document translation? - Azure AI services | Microsoft Learn
   Get supported document formats method - Azure AI services | Microsoft Learn