> For the complete documentation index, see [llms.txt](https://docs.yansalabs.com/pdf-generator/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yansalabs.com/pdf-generator/technical-docs/building-a-pdf-template/data-sources.md).

# Data Sources

Data Sources are used when generating PDFs from multiple records for label PDF generation. They enable you to specify the pool of records from which to generate labels.

<figure><img src="/files/NFmG14OeVm4kxKdxxQ10" alt=""><figcaption><p>Data Source</p></figcaption></figure>

* **Source**: Table from which to retrieve records. This should correlate to the 'Source table' on the PDF Template record.
* **Query type**: Specifies how to gather records for the **Data Source**. Typically, 'Filter Builder' is recommended. Scripted options are available for advanced use-cases.
* **Exclude since last used**: Allows further filtering applied to data source


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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.yansalabs.com/pdf-generator/technical-docs/building-a-pdf-template/data-sources.md?ask=<question>
```

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.