# 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: .NET Framework
- Version: APDFL21.0.0PlusP1e
- HTML page: https://docs.datalogics.com/apdfl21/DotNetFramework/APDFL21.0.0PlusP1e/enum/AFRelationship
- Version index: https://docs.datalogics.com/apdfl21/DotNetFramework/APDFL21.0.0PlusP1e/llms.txt

**Namespace:** `Datalogics::PDFL`

## 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`: Information used to derive a visual presentation, e.g. table or graph.
- `Alternative = 2`: Alternative representation of content, e.g. audio.
- `Supplement = 3`: Supplemental representation of the original source or data that may be more easily consumable.
- `EncryptedPayload = 4`: Encrypted payload document that should be displayed if the Processor has the cryptographic filter needed to decrypt it.
- `FormData = 5`: Data associated with the AcroForm.
- `Schema = 6`: Schema definition for the associated object.
- `Unspecified = 7`: Relationship is not known or can't be described using of the other values.