PdfiumViewer by: Pieter van Ginkel

PDF viewer based on the PDFium project.

PdfiumViewer.Native.x86.v8-xfa by: Pieter van Ginkel

Native 32-bit PDFium DLL with V8 and XFA support for usage with the PdfiumViewer project.

PdfPig by: UglyToad

Reads text content from PDF documents and supports document creation. Apache 2.0 licensed.

PDFsharp by: empira Software GmbH

PDFsharp is the Open Source .NET library that easily creates and processes PDF documents on the fly from any .NET language. The same drawing routines can be used to create PDF documents, draw on the screen, or send output to any printer. This is the PDFsharp PDF Core package. See Project Information for details.

PInvoke.BCrypt by: Andrew Arnott

P/Invoke methods for the Windows BCrypt.dll.

PInvoke.Kernel32 by: Andrew Arnott

P/Invoke methods for the Windows Kernel32.dll.

PInvoke.NCrypt by: Andrew Arnott

P/Invoke methods for the Windows NCrypt.dll.

PInvoke.Windows.Core by: Andrew Arnott

P/Invoke types for common Windows APIs.

Portable.BouncyCastle by: Claire Novotny

BouncyCastle portable version with support for .NET 4, .NET Standard 2.0

Portable.ConcurrentDictionary by: Stef Heyenrath

This is a .NET Standard 1.0, .NET 2.0, .NET 3.5, Silverlight 5.0 and Windows Phone Silverlight 8.0 & 8.1 backport from System.Collections.Concurrent.ConcurrentDictionary as defined in .NET Core

protobuf-net by: Marc Gravell

Provides simple access to fast and efficient "Protocol Buffers" serialization from .NET applications

protobuf-net.Core by: Marc Gravell

The protobuf-net serialization engine and build-time tooling; most projects should reference protobuf-net, which adds the runtime type model

PusherServer by: Pusher

Pusher .NET library for interacting with the HTTP API

QRCoder by: Raffael Herrmann, Shane Krueger

QRCoder is a simple library, written in C#.NET, which enables you to create QR codes.

Quartz by: Marko Lahma

Quartz Scheduling Framework for .NET

Quartz.Extensions.DependencyInjection by: Marko Lahma, Quartz.NET

Folded into Quartz in 4.0: AddQuartz, QuartzOptions and the rest live in the Quartz package now. This package is empty and exists only so a grouped dependency update can move to 4.x - remove the reference, and see the migration guide.

Quartz.Extensions.Hosting by: Marko Lahma, Quartz.NET

Folded into Quartz in 4.0: AddQuartzHostedService, QuartzHostedService and QuartzHostedServiceOptions live in the Quartz package now. This package is empty and exists only so a grouped dependency update can move to 4.x - remove the reference, and see the migration guide.

Quartz.Serialization.Json by: Marko Lahma, Quartz.NET

Renamed to Quartz.Serialization.Newtonsoft in 4.0. This package is empty and exists only so a grouped dependency update can move to 4.x - reference Quartz.Serialization.Newtonsoft instead, and see the migration guide.

RBush by: viceroypenguin

Spatial Index data structure; used to make it easier to find data points on a two dimensional plane.

ReflectionBridge by: Stef Heyenrath

Provides some extensions which define a bridge for the differences between Type and TypeInfo.