GroupDocs.Total for .NET File Format Support
Portable Document Format (PDF), Microsoft Word (DOC,DOCX, DOCM, DOT, DOTX, DOTM), Microsoft Excel (XLS, XLSX, XLSM, XLSB, XM), Microsoft PowerPoint (PPT, PPTX), Microsoft Visio (VSD, VDX, VSS, VSX, VST, VTX, VSDX, VDW), Microsoft Project (MPP, MPT), Microsoft Outlook (MSG, EML), OpenDocument (ODT, OTT, ODS, ODP),  Rich Text Format (RTF), Plain Text File (TXT), Comma-Separated (CSV), HyperText Markup Language (HTML, HTM, MHT, MHTL), XML Paper Specification XPS), AutoCAD Drawing File Format (DXF), Image files (BMP, GIF, JPG, PNG, TIFF) and Electronic publication (EPUB).

GroupDocs.Total for .NET includes the following document manipulation APIs for .NET:

• GroupDocs.Annotation for .NET provides a simple API that allows you to work with different types of annotations, which include: Text, Polyline, Area, Underline, Point, Watermark, Arrow, Ellipse, Text Replacement, Distance, Text Field, Resource Redaction etc. It also supports most popular documents formats such as: PDF, HTML, Microsoft Office Word, Excel spreadsheets, PowerPoint presentations, Visio, Outlook emails, images, metafiles, CAD drawing and various other formats.
• GroupDocs.Assembly for .NET helps you build document automation and report generation applications. You can create and customize template documents for supported file formats, and fetch data from data sources to intelligently assemble reports on the go. These reports range from charts, lists, tables, images and more. Formatting properties are also configurable and insertable dynamically, to create highly rich documents as per custom requirements. GroupDocs.Assembly for .NET supports a vast range of file formats to work with.
• GroupDocs.Classification for .NET is a document and text classification API for C#, ASP.NET, VB.NET, J# or any other .NET based application. Developers can work with four different types of taxonomies to perform advanced classification, either by using IAB-2 for assigning standardized text categories to text, document taxonomy developed by Aspose for different document types or Sentiment (and Sentiment3) for sentiment analysis. The library analyses text, sentences, even words and supports classifying a variety of industry standard document formats including PDF, Microsoft Word, OpenDocument, RTF and text. Sentiment analysis (classification) supports English, Chinese, Spanish, and German languages with language auto-detection. GroupDocs.Classification for .NET uses its own document processing engine and does not require any external tools be installed on the system.
• GroupDocs.Comparison for .NET allows users to quickly and easily find differences between two revisions of a document. It merges two uploaded documents and displays them, highlighting differences using the redline view approach. The process is similar to the Microsoft Word change tracking feature, but is hosted online using a Web browser.
• GroupDocs.Conversion for .NET helps you accurately convert popular document formats including: PDF, HTML, email, Microsoft Word, Excel, PowerPoint, Project, Photoshop, CorelDraw, AutoCAD, diagrams, raster image file formats and many more. The document converter library auto-detects the source document and lets you convert either the whole document or specific pages to the desired output format. It’s easy to replace missing fonts with preferred ones and add text or image watermarks to any document page.
• GroupDocs.Editor for .NET is a powerful document editing API. It can be used with any external, opensource or paid HTML editor. GroupDocs.Editor for .NET will load documents, convert them to HTML, provide HTML to the external UI and then save the HTML to an original document after manipulation. It can also be used to generate different PDF files, Microsoft Word (DOC, DOCX), Excel spreadsheets (XLS, XSLSX), PowerPoint presentations (PPT, PPTX), XPS, OpenDocument, Text, Web, Email and e-Book documents.
• GroupDocs.Merger for .NET enables your .NET applications to combine, split, rearrange, swap and trim document pages, slides, images or diagrams. You can perform these operations on secure files by setting or removing password protection of known and unknown file formats. By using GroupDocs.Merger for .NET, you can process single documents as well as a batches of documents. Programmatically stitch files of all popular formats, such as Microsoft Word, Excel, PowerPoint, Visio, OpenDocument, PDF, XPS, TXT, CSV, eBook and image file formats.
• GroupDocs.Metadata for .NET helps your end-users manipulate metadata from a range of images, documents and other media file formats without installing any external software. You can quickly add metadata viewer, editor, remover, extractor, comparison and exporter functionality within a number of industry standard document formats such as PDF, Microsoft Word, Excel spreadsheets, PowerPoint presentations, Outlook emails, Project, Visio diagrams, OneNote, images, AutoCAD, Photoshop, audio, video and metafiles.
• GroupDocs.Parser for .NET is a text, metadata and image extractor API for business applications developed using C#, ASP.NET, and other .NET technologies. It supports the extraction of raw, formatted and structured text as well as metadata from the files of supported formats. Through GroupDocs.Parser for .NET, your applications can also perform parsing of password protected documents for popular formats, such as Microsoft Word documents, Excel spreadsheets, PowerPoint presentations, OneNote, PDF files and ZIP archives.
• GroupDocs.Redaction for .NET is an API library that helps you erase sensitive and classified data from various file formats, such as, Microsoft Word, Excel, PowerPoint and PDF. The Redaction API’s format-independent interface supports redaction of various types, e.g., text redaction, metadata redaction, annotation redaction, and tabular document redaction. It also allows you to redact password protected files. You are allowed to save the document in its original format as well as create a sanitized PDF document with raster images of original pages.
• GroupDocs.Search for .NET is a document and text search API that supports basic to advanced search features including: multiple indexes, searching through indexes using Simple, Boolean, Fuzzy, Regular Expression (regex) and other query types, from files, documents and emails, through smart search.
• GroupDocs.Signature for .NET is an API that helps you build applications that can sign digital business documents, spreadsheets, presentations, images and PDF files. You can use several types of signature including text, image, barcode and QR-code to digitally secure your files. The digital signature API, allows you to fetch all registered certificates and it gives you advanced search options to quickly locate your required signatures. It also includes an option to customize signature properties, such as, dimensions, shadow, alignment and more.
• GroupDocs.Viewer for .NET helps you create applications that can render and display documents and images in 90+ file formats without installing any external software. The file viewer library rasterizes documents and then converts them to SVG/HTML/CSS for viewing business documents, images, text files, diagrams, graphics, email attachments and PDF files. You can display a whole document, a partial document, a specific page/cell range, an individual document layer, with or without annotations and comments for supported formats. GroupDocs.Viewer for .NET caches the output to the local disk by default. Any type of external cache storage is also supported by implementing appropriate interfaces – Amazon S3, Dropbox, Google Drive, Windows Azure, Redis or any other.
• GroupDocs.Watermark for .NET enables you to build applications which let your end-users add new watermarks and search for and remove existing watermarks in supported file formats. Using GroupDocs.Watermark for .NET, you can programmatically apply digital watermarks to a multitude of file formats and discourage unauthorized use of intellectual property and securely label documents of sensitive nature by employing various built-in security measures offered by this API.