---
title: "Custom annotations | Nutrient .NET SDK"
canonical_url: "https://www.nutrient.io/guides/dotnet/annotations/custom-annotations/"
md_url: "https://www.nutrient.io/guides/dotnet/annotations/custom-annotations.md"
last_updated: "2026-05-23T00:08:18.059Z"
description: "Custom annotations | .NET guide for Nutrient .NET SDK with detailed instructions and code examples."
---

# Custom annotations



---

## Related pages

- [Attach a file to an annotation in C#](/guides/dotnet/annotations/attach-a-file.md)
- [Annotate on images in C# .NET](/guides/dotnet/annotations/annotate-on-images.md)
- [Attach an image to an annotation in C#](/guides/dotnet/annotations/attach-an-image.md)
- [Create an annotation in a PDF using C#](/guides/dotnet/annotations/create.md)
- [Flatten PDF annotations in C# .NET](/guides/dotnet/annotations/flatten.md)
- [Edit PDF annotations in C#](/guides/dotnet/annotations/edit.md)
- [Export XMP annotation data in C# .NET](/guides/dotnet/annotations/export-xmp.md)
- [Export annotation data from PDFs in C# .NET](/guides/dotnet/annotations/export-pdf.md)
- [Import XFDF annotation data to PDFs in C# .NET](/guides/dotnet/annotations/import-xfdf.md)
- [Get PDF annotation properties in C# .NET](/guides/dotnet/annotations/get-properties.md)
- [Import XMP annotation data to PDF or image in C#](/guides/dotnet/annotations/import-xmp.md)
- [PDF annotations in C#.NET](/guides/dotnet/annotations.md)
- [Remove PDF annotations in C# .NET](/guides/dotnet/annotations/remove.md)
- [Add PDF actions using C# in form fields](/guides/dotnet/annotations/pdf-actions-support.md)
- [Stamp a PDF document in C# .NET](/guides/dotnet/annotations/stamp-a-document.md)
- [XMP annotations in C# .NET](/guides/dotnet/annotations/xmp-annotations.md)