---
title: "PDF data extraction server: Extract key-value pairs | Nutrient"
canonical_url: "https://www.nutrient.io/guides/document-engine/extraction/"
md_url: "https://www.nutrient.io/guides/document-engine/extraction.md"
last_updated: "2026-05-23T00:08:18.039Z"
description: "Unlock the secrets of document extraction with our expert guide. Boost your productivity and efficiency today. Access now!"
---

# PDF data extraction server

Document Engine includes support for extracting content and structured data from PDF documents and images.

## Essential guides

---

**Extract data**

How to extract data from a PDF document

[Read more](https://www.nutrient.io/guides/document-engine/extraction/extract-data.md)

---

**Extract text**

How to extract text from a PDF document

[Read more](https://www.nutrient.io/guides/document-engine/extraction/text.md)

## Key-value pairs

---

**How it works**

Learn about key-value pairs and how to use them

[Read more](https://www.nutrient.io/guides/document-engine/extraction/key-value-pairs/how-it-works.md)

---

**Data model**

Learn about Nutrient

[Read more](https://www.nutrient.io/guides/document-engine/signatures/signature-lifecycle/prepare-the-certificates-for-signing.md)

---

**Confidence score**

Learn about the calculated confidence score

[Read more](https://www.nutrient.io/guides/document-engine/extraction/key-value-pairs/confidence-score.md)

---

**Data types**

Learn about the different supported data types

[Read more](https://www.nutrient.io/guides/document-engine/extraction/key-value-pairs/data-types.md)

## Use case guides

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**Bank statements**

How to extract key-value pairs from bank statements

[Read more](https://www.nutrient.io/guides/document-engine/extraction/bank-statements.md)

---

**Tables**

How to extract table information from PDF documents

[Read more](https://www.nutrient.io/guides/document-engine/extraction/tables.md)

---

**Invoices**

How to extract key-value pairs from invoices

[Read more](https://www.nutrient.io/guides/document-engine/extraction/invoices.md)

**Call to Action**

Start your free trial for unlimited access and expert support.

[Learn More](https://www.nutrient.io/sdk/document-engine/getting-started.md)

---

## Related pages

- [Extract text, tables, and more from PDFs](/guides/document-engine/extraction/extract-data.md)
- [Invoices](/guides/document-engine/extraction/invoices.md)
- [Extract data from bank statements](/guides/document-engine/extraction/bank-statements.md)
- [Extract tables from PDFs and images](/guides/document-engine/extraction/tables.md)
- [Extract text from PDFs and images](/guides/document-engine/extraction/text.md)

## Pages in this section

- [Key-value pair extraction data types](/guides/document-engine/extraction/key-value-pairs/data-types.md)
- [Key-value pair extraction confidence score](/guides/document-engine/extraction/key-value-pairs/confidence-score.md)
- [How key-value pair extraction works](/guides/document-engine/extraction/key-value-pairs/how-it-works.md)
- [Key-value pair extraction data model](/guides/document-engine/extraction/key-value-pairs/data-model.md)