C# .NET Document Comparison API. Compare & merge PDF Word DOC DOCX, Excel Spreadsheet, PPT, PPTX, HTML, EMLX MSG, VSDX, DXF DWG & image file formats...., MOBI AutoCAD : DXF , DWG Email : EML , EMLX , MSG Images :...PDF, Word, Excel, Diagram, Email, Text & OneNote Documents Compare...