> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zappway.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# PDF Documents

> Train your AI with PDF files - the universal document format

## Overview

PDF is one of the most versatile formats for training your AI. Upload reports, ebooks, scanned documents, and more.

### Supported Types

* **Text PDFs**: Native digital PDFs
* **Scanned PDFs**: OCR text extraction
* **Forms**: Extract form fields and values
* **Multi-page**: Unlimited pages

***

## Quick Upload

<Steps>
  <Step title="Prepare PDF">Ensure PDF is not password-protected</Step>
  <Step title="Upload">Datastore → Add Datasource → File Upload</Step>
  <Step title="OCR">Scanned PDFs automatically processed with OCR</Step>
</Steps>

***

## Features

### Smart Text Extraction

* Maintains document structure
* Preserves tables and lists
* Extracts hyperlinks
* Reads headers and footers

### OCR for Scanned Documents

* Converts images to searchable text
* Supports 50+ languages
* Processes handwriting (with limitations)

***

## Best Practices

✅ **High-Quality Scans**: 300 DPI or higher
✅ **Remove Passwords**: Unlock PDFs before uploading
✅ **Merge Related PDFs**: Combine chapters/sections
✅ **Bookmarks**: Use for long documents

***

## Use Cases

* 📄 **Contracts & Legal Docs**
* 📖 **Ebooks & Guides**
* 📊 **Annual Reports**
* 🎓 **Research Papers**

***

## Troubleshooting

**OCR Quality Issues:**

* Use high-resolution scans
* Ensure good lighting
* Avoid skewed pages

**Large File Sizes:**

* Compress PDF (reduce image quality)
* Split into smaller files

***

## Limits

| Plan         | Max Size | OCR Pages |
| ------------ | -------- | --------- |
| Free         | 10 MB    | 50        |
| Professional | 50 MB    | Unlimited |