SvgToDxf

A .NET library for converting SVG files to DXF format using native Inkscape dxf_outlines extension.

Features

• Convert SVG to DXF format
• Cross-platform: Linux (glibc/musl), macOS (Intel/Apple Silicon), Windows (x64/ARM64)
• Self-contained native binaries - no Python or Inkscape installation required
• Supports .NET 8.0, 9.0, and 10.0
• Optional logging support via Microsoft.Extensions.Logging

Installation

dotnet add package SvgToDxf

Usage

Basic Usage

using SvgToDxf;

// Create converter
var converter = new SvgToDxfConverter();

// Convert SVG bytes to DXF bytes
byte[] svgBytes = File.ReadAllBytes("input.svg");
byte[] dxfBytes = await converter.ConvertAsync(svgBytes);
File.WriteAllBytes("output.dxf", dxfBytes);

With Options

var options = new DxfConversionOptions
{
    UsePolyline = true,      // Use LWPOLYLINE instead of LINE
    UseLegacyPolyline = false,
    UseRobo = false,
    Units = "mm"             // Output units: mm, cm, in, pt, px
};

byte[] dxfBytes = await converter.ConvertAsync(svgBytes, options);

With Stream Input

using var svgStream = File.OpenRead("input.svg");
byte[] dxfBytes = await converter.ConvertAsync(svgStream);

With Logging

using Microsoft.Extensions.Logging;

var loggerFactory = LoggerFactory.Create(builder => builder.AddConsole());
var logger = loggerFactory.CreateLogger<SvgToDxfConverter>();

var converter = new SvgToDxfConverter(logger);
byte[] dxfBytes = await converter.ConvertAsync(svgBytes);

With Cancellation

using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30));
byte[] dxfBytes = await converter.ConvertAsync(svgBytes, cts.Token);

Supported Platforms

Platform	Architecture	RID
Linux (glibc)	x64	linux-x64
Linux (glibc)	arm64	linux-arm64
Linux (musl/Alpine)	x64	linux-musl-x64
Linux (musl/Alpine)	arm64	linux-musl-arm64
macOS	Intel	osx-x64
macOS	Apple Silicon	osx-arm64
Windows	x64	win-x64
Windows	ARM64	win-arm64

Error Handling

try
{
    byte[] dxfBytes = await converter.ConvertAsync(svgBytes);
}
catch (DxfConversionException ex)
{
    Console.WriteLine($"Conversion failed: {ex.Message}");
    Console.WriteLine($"Exit code: {ex.ExitCode}");
    Console.WriteLine($"Error output: {ex.ErrorOutput}");
}

License

MIT License - see LICENSE for details.

Credits

This library uses the dxf_outlines extension from Inkscape Extensions, compiled to native binaries using Nuitka.