Aspose.SVG for .NET Features

Key Features

Aspose.SVG for .NET is a C# API for creating, editing, inspecting, rendering, converting, and vectorizing SVG files. It gives applications access to SVG document content through DOM APIs and provides SVG-focused tools for automated graphics and output workflows.

The library covers the following areas:

SVG Document Creation and Loading

• Create an Empty SVG Document – Instantiate an empty SVG document using the SVGDocument() constructor.
• Load SVG from Memory, Stream, or File – The SVGDocument class has a wide set of overloaded constructors allowing you to create a blank document or load SVG from a file, URL, stream, etc.
• Load SVGZ from File or URL – Load existing SVGZ files using the SVGDocument class.
• Load SVG with External Resources Asynchronously – Load SVG documents that reference external resources using the OnReadyStateChange event handler.
• Create SVG with Builder API – Use the SVG Builder API to construct and configure SVG elements programmatically.

See Create, Load and Read SVG Files in C# for document creation and loading examples.

SVG Document Editing

• Edit a Document Tree – DOM tree manipulation based on official SVG specifications.
• Add Elements to SVG – Use CreateElementNS() and InsertBefore() to programmatically insert new SVG elements into the document.
• Draw Basic Shapes – Add geometric primitives like <circle>, <rect>, and <line> to create custom vector graphics.
• Edit SVG Using SVG Builder – Change styles, positions, and other element properties using Element Builders.
• Edit SVG Paths – Access and update complex path definitions with full control over curves, lines, and commands.

See Edit SVG File – C# Examples for common editing tasks.

SVG Document Navigation and Inspection

• DOM-Based Navigation – Traverse the SVG structure using familiar DOM methods and properties such as GetElementsByTagName(), DocumentElement, and node relationships to explore and manipulate content.
• Element Inspection – Access and extract detailed information from individual SVG elements using DOM properties.
• CSS Selectors – Select and edit elements using CSS selector syntax to apply styles or make targeted changes through the API.
• XPath Queries – Use powerful XPath expressions to locate and interact with nodes in the SVG document for advanced search and inspection tasks.

See Navigate and Inspect SVG Documents in C# for DOM, CSS selector, and XPath examples.

SVG Builder API

• SVG Builder API – Simplify the creation and maintenance of SVG documents with readable fluent code.
• SVGElementBuilder – Create and configure SVG elements like <rect>, <circle>, <text>, and more using a fluent syntax for faster and cleaner SVG creation.
• Path Builder – Define complex vector paths programmatically with precision using the PathBuilder class.
• Paint Builder – Easily apply fill, stroke, gradients, and opacity settings to SVG elements, allowing fine control over styling and visual appearance.

Explore SVG Builder, Path Builder, and Paint Builder for fluent creation examples.

SVG Conversion and Rendering

• Convert SVG to PDF, XPS, and Images – Convert SVG files to formats such as PDF, XPS, PNG, JPEG, TIFF, WEBP, or GIF.
• Convert SVG to SVGZ and Back – Choose between compressed (SVGZ) and uncompressed (SVG) formats using the SVGSaveFormat enumeration in the Aspose.Svg.Saving namespace.
• Advanced Rendering Options – Fine-tune rendering with settings such as resolution, protection, background color, and page size using ImageRenderingOptions, PdfRenderingOptions, or XpsRenderingOptions, depending on your output format.

See Convert SVG Files in C# for conversion approaches and output options.

Image Vectorization and Text Vectorization

• Image Vectorization – Convert raster images such as PNG, JPG, BMP, TIFF, GIF, and ICO into SVG documents.
• Image Stencil Effects – Generate stylized, stencil-like visuals from images during vectorization for creative or technical uses.
• Text Vectorization – Convert text nodes into path elements to preserve appearance, prevent text editing, and maintain crisp rendering at any zoom level.

See Image and Text Vectorization for the available workflows and configuration options.

Advanced SVG Features

• Render Multiple SVG Documents to a Single Output File – Use the Render() method to produce a combined PDF, XPS, or image output from multiple SVG documents.
• Apply SVG Transformations – Transform individual or grouped SVG elements with rotation, scaling, translation, and skewing using the transform attribute or transformation matrices.
• SVG Optimization – Optimize SVG files by removing redundant elements, attributes, and metadata to reduce file size and improve performance.
• SVG Filters – Apply SVG filters like Gaussian blur, drop shadow, color saturation, and more through code.
• SVG Gradients – Create and apply smooth color transitions using linear and radial gradients to enrich SVG graphics with dynamic color effects.
• SVG Text and Fonts – Create and update SVG text content and styling using elements such as <text> and <tspan>.
• Logging and Message Handlers – Implement detailed logging and monitor network requests or errors using customizable message handlers like LogMessageHandler for enhanced diagnostics and debugging.
• Built-in features – CSS and JS – Manipulate stylesheets, inline and external styles for entire documents or targeted elements; execute JavaScript code embedded in SVG documents.

Explore More SVG Tasks

Move from the feature summary to task-based examples:

• Render Multiple SVG Files to a Single Output
• Optimize SVG Files
• Create SVG Filters
• Create SVG Gradients