Azure document Translation service

Question

Azure document Translation service

Thota, Bharath Babu 20

Hi Microsoft Community,

I want to check how all achieve and overcome the inaccuracies in the Document Translation service. I chose the Azure Translation service for my PDF files translation into Chinese Traditional language. It showed high accuracy in text translation and, even worse, the text missing in some areas or parts of the document. For example, in the pictures below the highlighted areas are not translated even when they are in text type(Session 20 and Session 22). Does anyone know how to overcome this kind of problem while translating a bunch of PDF files? Kindly help me and suggest which translation service is better for PDF translation into Chinese traditional and Chinese simplified?

Thank you, tableofcontents

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Saideep Anchuri 6,185 Reputation points Microsoft External Staff

2025-04-15T14:35:28.1866667+00:00

Hi Thota, Bharath Babu

Following up to see if the above answer was helpful.

Thank You.
Saideep Anchuri 6,185 Reputation points Microsoft External Staff

2025-04-15T15:39:31.3233333+00:00

Hi Thota, Bharath Babu

I'm glad to hear that my response was helpful to you. And thanks for sharing the information, which might be beneficial to other community members reading this thread as solution. Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", so I'll convert the previous response to an answer in case you'd like to accept the answer. This will help other users who may have a similar query find the solution more easily. If you have any further questions or concerns, please don't hesitate to ask. We're always here to help.

Thank You.
Saideep Anchuri 6,185 Reputation points Microsoft External Staff

2025-04-16T15:06:46.91+00:00

Hi Thota, Bharath Babu

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet.

Thank you.

Accepted answer

1 additional answer

Your answer

Saideep Anchuri 6,185 Reputation points Microsoft External Staff

2025-04-15T14:35:28.1866667+00:00

Hi Thota, Bharath Babu

Following up to see if the above answer was helpful.

Thank You.
Saideep Anchuri 6,185 Reputation points Microsoft External Staff

2025-04-15T15:39:31.3233333+00:00

Hi Thota, Bharath Babu

I'm glad to hear that my response was helpful to you. And thanks for sharing the information, which might be beneficial to other community members reading this thread as solution. Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", so I'll convert the previous response to an answer in case you'd like to accept the answer. This will help other users who may have a similar query find the solution more easily. If you have any further questions or concerns, please don't hesitate to ask. We're always here to help.

Thank You.
Saideep Anchuri 6,185 Reputation points Microsoft External Staff

2025-04-16T15:06:46.91+00:00

Hi Thota, Bharath Babu

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet.

Thank you.

Answer 1

Hi Thota, Bharath Babu

The Azure Document Translation service can sometimes face challenges with accuracy, especially when translating PDF files.

Text in Images: The Azure translation service does not translate text that is embedded in images within a document. If the highlighted areas you mentioned contain text in images, this would explain why they are not translated.
Document Format: The quality of translation can vary depending on the format of the PDF. Native PDFs (those generated from digital file formats) generally provide better results compared to scanned PDFs, which may lose formatting and layout during translation.
Mixed Language Input: If your PDF contains text in multiple languages, the translation might not be optimal, leading to some text being left untranslated or mistranslated.
Character Count and Context: Machine translation systems often translate documents sentence by sentence without full context, which can lead to inaccuracies, especially with pronouns or gendered language.

Kindly refer below link: requirements-and-limitations

use-document-translation-sdk-in-your-applications

Thank You.

Answer 2

Thota, Bharath Babu 20

Thank you, It was helpful.

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Azure document Translation service

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