From Software Siglo XXI:
ImageZoom Viewer for .NET is a smart image viewer control supporting PDF, TIFF, GIF, PNG, JPEG and BMP, with interactive zoom, panning and page browsing for PDF and TIFF files. Displaying big images while allowing the user to zoom a zone. Read multi-page documents (PDF or TIFF), directly from your application. Enhance the experience of your users. Great replacement for PictureBox control, also with printing functions.