Supported File Formats

Microsoft Office Formats

• Microsoft Word: DOC, DOCX, DOCM, DOT, DOTX, RTF
• Microsoft Excel: XLS, XLSX, XLSM, XLSB
• Microsoft PowerPoint: PPT, PPTX, PPS, PPSX, POTM, POTX, PPSM, PPTM, WMF, EMF
• Microsoft Outlook: EML, EMLX, MSG
• Microsoft Visio: VSS, VST, VSD, VSDX, VSX

Other Formats

• Portable: PDF (PDF/A-1a, PDF/A-1b, PDF/A-2a)
• OpenDocument: ODT, ODS, ODP
• Images: BMP, JPG, JPEG, TIFF, TIF, PNG, GIF, DCM, DICOM
• AutoCAD: DWG, DXF
• Metafiles: DWG, DXF, CAD
• Other: HTM, HTML, CSV, DJVU, OTP, OTT

GroupDocs.Annotation for .NET Features

• Add, edit and remove annotations and replies.
• Export annotations to document.
• Single function call to fetch all annotations of a document.
• Assign value to point annotation or move existing point value.
• Add link annotation to PDF, Word and PowerPoint slides.
• Set background color of an annotation or remove all the annotations from document‎.
• Annotate PDF files with accuracy – Get image representation of PDF document & cache page previews.
• Get text coordinates of text annotation in image representation of document.
• Link user comments to area annotation and support for nested comments.
• Use arrow annotation for pointing to particular content.
• Use distance annotation to draw a line that represents distance among objects.
• Point based annotation that when clicked pops window to add comments.
• Create a connected sequence of line segments created as a polyline annotation.
• Create straight line segments, arc segments or a combination of the both.
• Mark document areas proposed for redaction.
• Add image annotation to PDF, Diagrams, Word, Excel, Presentations and Images.
• Add text field and text based Stamp or watermark in document.
• Strikethrough, underline or replace particular text in a document.
• Resize annotation by assigning new height and width parameters.
• Get thumbnails of document pages. Manage a variety of annotated docs for images and diagrams.
• Export annotations to and work with multi-page TIFF files.
• Adjust vertical and horizontal alignment for watermark annotation.
• Add text horizontal alignment for text field.
• Get information about document text lines (text, width, height, indents).