Aspose.Pdf.Kit for .NET

If you're looking for a reliable .NET component to edit existing PDFs, Aspose.Pdf.Kit is a great option. It supports both window forms and ASP.NET applications, making it versatile and usable in a variety of contexts.

One of the standout features of Aspose.Pdf.Kit is its ability to add or remove digital signatures, as well as encrypt or decrypt a PDF. This makes it an attractive option for anyone looking to secure their PDF files. Additionally, it supports XFA, allowing for greater flexibility in form design, and can even add CJK fonts to form fields.

Other useful features of Aspose.Pdf.Kit include the ability to add bookmarks, create PDF stamps, and work with AcroForm. You can also add watermarks or logos, extract or add images and text, and even convert PDF files to popular image formats like TIFF, BMP, PNG, and JPG.

If you need to concatenate PDF files, or add or set XMP Metadata to an existing PDF, Aspose.Pdf.Kit can handle that too. Overall, this is a robust and versatile tool for anyone working with PDFs in a .NET environment.