Aspose.Diagram for Python via .NET is a Microsoft Visio document manipulation solution that enables developers to read, write, protect, export, and print native Visio formats. The API also supports commonly used image and fixed‑layout formats, making it simple to load existing Visio files, modify diagram elements, and export them into formats such as PDF, XPS, or various image formats. Aspose.Diagram for Python via .NET is a fully standalone API that does not require Microsoft Visio or any other software installation. It supports essential tasks such as creating diagrams from scratch, reading or writing multiple formats, accessing and interpreting Visio object properties and formulas, exporting diagrams to numerous output formats, printing diagrams with high fidelity, and much more.

Features

Supported File Formats Input/Output:

• Microsoft Visio: VSDX, VDX, VSX, VTX, VSSX, VSTX, VSDM, VSSM, VSTM Input Only:
• Microsoft Visio: VDW, VSD, VSS, VST Output Only:
• Fixed Layout: PDF, XPS
• Images: JPEG, PNG, BMP, TIFF, SVG, EMF
• Others: XAML

Advanced Python Visio API Features

• Create diagrams from scratch
• Read multiple native Visio formats
• Access and read properties of Visio objects
• Write diagrams in supported Visio formats
• Manipulate Visio document properties
• Protect or unprotect diagrams and shapes
• Print diagrams with high fidelity
• Export diagrams to fixed‑layout and image formats
• Work with core Visio structures including:
  • document
  • page
  • master
  • shape
  • stylesheet
  • connect data
• Modify diagram elements and structure
• Load existing Visio files and update their contents
• Work with layers, comments, hyperlinks, user‑defined cells, and formulas

Benefits

• No Microsoft Visio required: A fully standalone API that eliminates dependency on the Visio application.
• Extensive format support: Read and write a wide range of Visio formats, including both classic and modern versions.
• High‑fidelity exporting: Convert Visio diagrams to high‑quality PDF, XPS, images, SVG, EMF, and XAML formats.
• Robust diagram manipulation: Modify shapes, pages, connections, properties, and Visio metadata programmatically.
• Python‑friendly automation: Ideal for Python‑based systems that need scalable diagram generation, conversion, or processing.
• Server‑side and enterprise ready: Suitable for backend workflows, batch processing, reporting systems, and document automation.
• Easy integration: Designed to simplify diagram handling in Python applications with intuitive, consistent APIs.