---
title: "Save PDF file in C# .NET | Nutrient .NET SDK"
canonical_url: "https://www.nutrient.io/guides/dotnet/save-a-file/pdf/"
md_url: "https://www.nutrient.io/guides/dotnet/save-a-file/pdf.md"
last_updated: "2026-05-21T17:12:02.215Z"
description: "Save PDFs in C# using Nutrient .NET SDK. Save to file or stream, with incremental saving for speed. Encrypt PDFs with advanced options. Learn more!"
---

# Save PDF files in C#

### Overview

[Overview](https://www.nutrient.io/guides/dotnet/save-a-file/pdf.md)

### To local storage

[To local storage](https://www.nutrient.io/guides/dotnet/save-a-file/pdf-local-storage.md)

### Incremental

[Incremental](https://www.nutrient.io/guides/dotnet/save-a-file/pdf-incremental.md)

### To stream

[To stream](https://www.nutrient.io/guides/dotnet/save-a-file/pdf-stream.md)

### Incremental to stream

[Incremental to stream](https://www.nutrient.io/guides/dotnet/save-a-file/pdf-incremental-to-stream.md)

Nutrient.NET SDK (formerly GdPicture.NET) provides multiple ways to save PDF documents loaded in the [`GdPicturePDF` class](https://www.nutrient.io/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPicturePDF.html):

- Save to a file or a `Stream` object.

- **Incremental saving** — Writes only the changes since the last save, reducing save times for large documents.

- **Encryption** — Secures PDF documents with configurable security options.
---

## Related pages

- [Save a file from the annotation manager in C#](/guides/dotnet/save-a-file/annotation-to-pdf.md)
- [Save a file from the annotation manager in C#](/guides/dotnet/save-a-file/annotation-to-jpg.md)
- [Save images in C#](/guides/dotnet/save-a-file/imaging-bitmap.md)
- [Save a file from the annotation manager in C#](/guides/dotnet/save-a-file/annotation-to-tiff.md)
- [Save images in C#](/guides/dotnet/save-a-file/imaging-vector.md)
- [Save images in C#](/guides/dotnet/save-a-file/imaging.md)
- [Save images in C#](/guides/dotnet/save-a-file/imaging-ftp.md)
- [Save a file from the annotation manager in C#](/guides/dotnet/save-a-file/annotation-to-xmp.md)
- [Save images in C#](/guides/dotnet/save-a-file/imaging-byte-array.md)
- [Save images in C#](/guides/dotnet/save-a-file/imaging-remote-url.md)
- [Save images and PDF files in C#](/guides/dotnet/save-a-file.md)
- [Save PDF files in C#](/guides/dotnet/save-a-file/pdf-incremental.md)
- [Save PDF files in C#](/guides/dotnet/save-a-file/pdf-local-storage.md)
- [Save PDF files in C#](/guides/dotnet/save-a-file/pdf-stream.md)
- [Save PDF files in C#](/guides/dotnet/save-a-file/pdf-incremental-to-stream.md)