FFmpeg

FFmpeg is a free and open-source software project consisting of a large suite of libraries and programs for handling video, audio, and other multimedia files and streams.

iTextSharp

iText is a library for creating and manipulating PDF files in Java and .NET.

Syncfusion

Syncfusion provides the best third-party UI components for WinForms, WPF, ASP.NET Web Forms, MVC, Core, UWP, WinUI (Preview), Xamarin, JavaScript and so on...

PDFsharp

PDFsharp® is an open source .NET library for processing PDF files. It is written in C#. The library can be used to create, render, print, split, merge, modify, and extract text and meta-data of PDF files.

Spire.PDF

Spire.PDF for .NET is a professional PDF API applied to creating, writing, editing, handling and reading PDF files without any external dependencies within .NET ( C#, VB.NET, ASP.NET, .NET Core, Xamarin ) application.

Image

Video