# NumberStyle Enum

> Specifies the numbering style for page labels in a document.

- Product: Adobe PDF Library 21
- Language: .NET Framework
- Version: APDFL21.0.0PlusP1e
- HTML page: https://docs.datalogics.com/apdfl21/DotNetFramework/APDFL21.0.0PlusP1e/enum/NumberStyle
- Version index: https://docs.datalogics.com/apdfl21/DotNetFramework/APDFL21.0.0PlusP1e/llms.txt

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

## Description

Specifies the numbering style for page labels in a document.

## Values

- `Decimal = 0`: Decimal arabic numerals (1,2,3...)
- `RomanUppercase = 1`: Uppercase Roman numerals (I,II,III...)
- `RomanLowercase = 2`: Lowercase Roman numerals (i,ii,iii...)
- `LetterUppercase = 3`: Uppercase letters (A,B,C...AA,BB...)
- `LetterLowercase = 4`: Lowercase letters (a,b,c...aa,bb...)
- `None = 5`: Use no NumberStyle, only Prefix