.NET API to manipulate Microsoft Visio® files

Create, edit, manipulate and transform Microsoft Visio® diagrams to XPS, HTML, SVG, SWF, XAML, images or PDF formats within any .NET application.

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Aspose.Diagram for .NET

Aspose.Diagram for .NET


Aspose.Diagram for .NET is a specialized API designed to work with Microsoft Visio files. It allows developers to create, manipulate & convert native Visio file formats from within ASP.NET web applications, web services, Windows applications and Mono. Developers can create diagrams from scratch as well as easily load existing files and manipulate the elements of the diagram to export the result in other Visio formats, images or fixed-layout formats.

This .NET Diagram API is an alternative to the Microsoft Visio Object Model and provides better performance. It makes use of the advanced functionality of Visio Services to manipulate Visio documents on a server. The API is extensible, easy to use, compact and provides common functionality so that developers have to write less code when performing common tasks.

Export diagrams to other File Formats

  • Export diagrams to images, SVG

  • Export diagrams to PDF

  • Export diagrams to XPS


    Export diagram to HTML


    Export diagrams to XML, XAML


    Export diagram to SWF


Advanced Diagram API Features



Read multiple Visio formats


Group multiple shapes


Configure Visio TimeLine shapes


Specify fonts location


Read properties of different objects of the diagram


Save diagrams as XML or XAML


Manipulate Visio document properties


Print Visio diagram on a server via XpsPrint API


Rotate a shape at any angle


Add comments to Visio drawings


Insert a new blank page into a Visio drawing


Print Visio diagrams with high fidelity

Manipulate Microsoft Visio Documents

Aspose.Diagram for .NET API allows to read Microsoft Visio files in native VSD/VSDX format as well as other Visio formats including VSS, VST, VSX, VTX, VDW, VDX, VSSX, VSTX, VSDM, VSSM and VSTM. The contents of the diagram can be manipulated through the Aspose.Diagram API. After making the required changes to the Visio file, the file can then be written to disk in any of the supported formats.

Render Visio Formats to Images, PDF & XPS

Using Aspose.Diagram for .NET, developers can open Visio files and export them to popular image formats including BMP, JPEG, PNG, TIFF, SVG and EMF. The API also provides the ability to export Visio files to PDF & XPS formats with high fidelity.

Manipulate Visio Objects

Aspose.Diagram for .NET lets the developers to easily access and read the properties of different Visio objects like Document, Page, Master, Shape, StyleSheet, Connect and so on.

Print Diagrams

Aspose.Diagram for .NET allows to print a document using various different options, with just a few lines of code. You can choose to print using default settings, print to a specific printer and choose to print a range of pages.

Microsoft Office Automation – Not Needed

Aspose.Diagram for .NET is built using managed code that never needs Microsoft Office or Microsoft Visio to be installed on the machine to work with Visio files processing. It is a perfect Microsoft Office Visio automation alternative in terms of supported features, security, stability, scalability, speed and price.


Aspose.Diagram offers individual Diagramming APIs for other popular development environments as listed below: