# AFRelationship Enum

> Represents the relationship between the component of the PDF document that refers to this attachment and the file denoted by the attachment

- Product: Adobe PDF Library 21
- Language: Modern C++
- Version: 21.4.0
- HTML page: https://docs.datalogics.com/apdfl21/ModernCPP/21.4.0/enum/AFRelationship
- Version index: https://docs.datalogics.com/apdfl21/ModernCPP/21.4.0/llms.txt

**Namespace:** `datalogics_interface`

## Description

Represents the relationship between the component of the PDF document that refers to this attachment and the file denoted by the attachment

## Values

- `Source = 0`: Original source material.
- `Data = 1`: Data for visual presentation.
- `Alternative = 2`: Alternative representation.
- `Supplement = 3`: Supplemental representation.
- `EncryptedPayload = 4`: Encrypted payload.
- `FormData = 5`: AcroForm data.
- `Schema = 6`: Schema definition.
- `Unspecified = 7`: Unknown/unspecified.