# Download Nutrient .NET SDK (formerly GdPicture.NET) ## GdPicture.API package on Nuget FOR: Windows | macOS | Linux [](https://www.nuget.org/packages/GdPicture.API) ## Getting started [Get started guide](https://www.nutrient.io/sdk/dotnet/getting-started.md) [Download the project example](https://www.nutrient.io/downloads/GdPictureBootstrap.zip) ### Project example Browse the sample projects below. Clone the repository, and then open the linked sample folder in Visual Studio (or your preferred IDE) to run it. #### Annotations - [Annotations sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Annotations) - [Freehand drawing sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Freehand%20Drawing) - [Real-time line drawing sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Realtime%20Line%20Drawing) #### Barcodes - [Barcode recognition sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Barcode%20Recognition) - [Barcode write sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Barcode%20Write) #### Document management - [Document clean up sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Document%20Clean%20Up) - [Document recognition (ADR) sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Document%20Recognition%20(ADR)) - [Document viewer sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Document%20Viewer) - [Forms processing and OMR samples](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Forms%20Processing%20-%20OMR) - [MICR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/MICR) #### File processing - [Displaying from URL sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Displaying%20From%20URL) - [File converter sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/File%20Converter) - [Page manipulation sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Pages%20Manipulation) - [Text file to PDF sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Text%20File%20to%20PDF) - [Text writer sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Text%20Writer) - [Thumbnail drag-and-drop sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Thumbnail%20-%20Drag%20And%20Drop) #### Images - [Adjusting gamma brightness contrast saturation sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Adjusting%20Gamma%20-%20Brightness%20-%20Contrast%20%26%20Saturation) - [Binarization sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Binarization) - [Chroma key background removal sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Chroma%20Key%20Background%20Removal) - [DICOM viewer sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/DICOM%20Viewer) - [Image processing sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Image%20Processing) - [Rotating by angle (images) sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Rotating%20By%20Angle%20(images)) #### Image conversion - [Image processing sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Image%20Processing) - [Image to PDF sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Image%20to%20PDF) - [Image to PDF-MRC sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Image%20to%20PDF-MRC) - [Image to PDF-OCR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Image%20to%20PDF-OCR) - [TIFF to PDF-OCR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/vb.net/TIFF%20to%20PDF-OCR) #### OCR and segmentation - [OCR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/OCR) - [Segmentation sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Segmentation) - [Image to PDF-OCR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Image%20to%20PDF-OCR) - [PDF to PDF-OCR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/PDF%20to%20PDF-OCR) - [TIFF to PDF-OCR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/vb.net/TIFF%20to%20PDF-OCR) #### PDF - [Digital signing PDF sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Digital%20Signing%20PDF) - [Image to PDF sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Image%20to%20PDF) - [Image to PDF-MRC sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Image%20to%20PDF-MRC) - [Image to PDF-OCR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Image%20to%20PDF-OCR) - [PDF splitter sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/PDF%20Splitter) - [PDF to PDF-OCR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/PDF%20to%20PDF-OCR) - [PDF to TIFF sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/PDF%20to%20TIFF) - [Rotating by angle (PDF) sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Rotating%20By%20Angle%20(PDF)) - [Text file to PDF sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Text%20File%20to%20PDF) #### TIFF - [TIFF to PDF sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/vb.net/TIFF%20to%20PDF) - [TIFF to PDF-OCR sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/vb.net/TIFF%20to%20PDF-OCR) - [TIFF splitter sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/TIFF%20Splitter) - [PDF to TIFF sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/PDF%20to%20TIFF) #### TWAIN and WIA - [TWAIN scanning sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/TWAIN%20Scanning) - [TWAIN scanning — asynchronous sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/Twain%20Scanning%20-%20Asynchronous) - [WIA scanning sample](https://github.com/Orpalis/installer-samples/tree/master/GdPicture/WinForm/C%23/WIA%20Scanning) ## Additional components Nutrient.NET SDK offers optional packages for OCR resources, desktop and web viewers, and COM interop. ### Resources Resources for GdPicture required for OCR processing. [](https://www.nuget.org/packages/GdPicture.Resources) ### Viewers --- FOR: Winform | WPF Install the viewer package for your UI framework (`GdPicture.WinForms` or `GdPicture.WPF`). [](https://www.nuget.org/packages/GdPicture) [](https://www.nuget.org/packages/GdPicture.WinForms) [](https://www.nuget.org/packages/GdPicture.WPF) Starting from 14.4.0, WinForms and WPF viewers are distributed as separate NuGet packages. --- FOR: MAUI Windows | macOS A cross-platform solution that extends GdPicture.API capabilities by adding the GdViewer MAUI viewer component. [](https://www.nuget.org/packages/GdPicture.MAUI/0.9.11-rc) --- FOR: DocuVieware (GdViewer for web Backend) Windows | macOS | Linux A standalone package offering a rich viewer and collaboration solution. Ideal for web-based projects that require advanced document viewing, annotation, and sharing capabilities. [](https://www.nuget.org/packages/DocuVieware) [](https://www.nuget.org/packages/DocuVieware.API) --- ### COM [Download installer file](https://my.pspdfkit.com/download/gdpicture/latest/?_gl=1*8khysc*_gcl_au*OTgyMjU4ODM3LjE3Mzk5NTY4NDM.*_ga*MTc5MjE5NzYxMC4xNzM5NTIwNTMy*_ga_T3566QEJ3P*MTc0MTE1NjQzMS43OS4xLjE3NDExNTY2MDUuNTIuMC43MjEzMTAzMQ..) --- ## Related pages - [ASP.NET PDF library](/guides/dotnet/aspnet.md) - [Best practices for PDF processing in .NET](/guides/dotnet/best-practices.md) - [C#.NET PDF library](/guides/dotnet.md) - [Nutrient .NET SDK guides — Add advanced PDF features to your .NET applications](/guides/dotnet/intro.md) - [C# Office library](/guides/dotnet/office.md) - [Example Project](/guides/dotnet/getting-started/catalog-example.md) - [Changelog for .NET](/guides/dotnet/changelog.md) - [Troubleshooting](/guides/dotnet/troubleshoot.md) - [C# TIFF library](/guides/dotnet/tiff.md) - [WinForms PDF library](/guides/dotnet/winforms.md) - [VB.NET PDF library](/guides/dotnet/vbnet.md) - [WPF PDF and image library](/guides/dotnet/wpf.md) - [C# and VB.NET code samples](/guides/dotnet/samples.md) - [.NET core PDF library](/guides/dotnet/core.md) - [Delphi PDF library](/guides/dotnet/delphi.md) - [Explore interactive PDF SDK demos and features](/guides/dotnet/demo.md) - [Deploy an application in C# .NET](/guides/dotnet/deployment.md)