> For the complete documentation index, see [llms.txt](https://docs.siminsights.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.siminsights.com/hyperskill/ai/pdf-question-answering.md).

# PDF Question Answering

HyperSkill support question answering over PDF documents. To enable PDF Question Answering, you will need to:

1. [Upload a set of documents](/hyperskill/media-upload.md)
2. Enter edit mode in your simulation and enable PDF Question answering under AI->AI Chat in your simulation.
3. Go to Settings->Microphone and ensure Microphone Input is enabled.
4. Go to Settings->Documents and add documents

**Additional Notes**

* All documents you list will be used for question answering.
* Question answering can work with any number of documents. 
* All documents need to be processed before question answering can be performed. This occurs automatically the first time you use the feature in experience mode.
  * When the document is processing, the system will notify you it is unable to answer your question.
  * This only occurs once per document.  Using the document in another or subsequent experiences will not require re-processing.

HyperSkill PDF Question Answering is powered by Google. For information on data privacy, please see [Large Language Models](/hyperskill/ai/large-language-models-and-data-privacy.md).