When working with PDF documents, splitting pages is a common requirement—for example, extracting specific chapters from a multi-page report, distributing meeting minutes by participant, or saving each page of a scanned document as a separate file. This article details how to split PDF pages in C# using a free library, with code examples for various scenarios.

Installation : Install the FreeSpire.PDF package via NuGet ( Install-Package FreeSpire.PDF ). This is a free community edition with no restrictions when processing up to 10 pages per operation. Exceeding 10 pages will result in truncation, so this library is suitable for lightweight tasks.

1. Core Approach

Splitting a PDF essentially means: load source document → select target pages → create a new document → import pages → save .…