Third-Party Licenses

Applies to: XenPDF, XenShot, XenCompare, XenCADtoPDF, XenCommand, and other Xenthum desktop utilities · Last updated: October 2026

Xenthum products use open-source components. The following notices apply. Each component is used in accordance with its respective licence. All listed licences are permissive and compatible with commercial distribution on the Microsoft Store.

XenPDF — Third-Party Components

From the notice file shipped with XenPDF 1.0.0. Where a component is offered under a choice of licences, XenPDF uses it under MIT.

eframe / egui

lopdf

rfd (Rusty File Dialogs)

image

pdfium-render

winapi

PDFium (page renderer, shipped as pdfium.dll)

pdfium-binaries (build and packaging of pdfium.dll)

Syne (embedded font, ExtraBold weight)

Lucide Icons (embedded icon font)

Notes:

PDFium bundles further open-source components (Abseil, AGG, fast_float and others), each under a permissive licence. They are listed with full licence texts in the complete XenPDF notice file, which also inventories every Rust crate in the build.
egui compiles in four fallback fonts — Ubuntu-Light, Hack, Noto Emoji and emoji-icon-font — under their own permissive licences, reproduced in the complete notice file.
Rust standard library: MIT OR Apache-2.0

XenShot — Third-Party Components

Microsoft.Extensions.Hosting / Microsoft.Extensions.*

Serilog

Serilog.Extensions.Hosting

Serilog.Extensions.Logging

Serilog.Sinks.File

H.NotifyIcon / H.NotifyIcon.Wpf

H.GeneratedIcons.System.Drawing

Vortice.Direct3D11 / Vortice.DXGI / Vortice.DirectX

Vortice.Mathematics

SharpGen.Runtime / SharpGen.Runtime.COM

Lucide Icons

Feather Icons portions

Syne (embedded font, ExtraBold weight)

Notes:

.NET / WPF / Windows APIs are Microsoft platform components, not separate bundled third-party app dependencies
DXGI Desktop Duplication and GDI BitBlt are Windows APIs used for capture
Windows OCR is used through Windows platform APIs

XenCADtoPDF — Third-Party Components

From the notice file shipped with XenCADtoPDF (src/XenCADtoPDF.App/Resources/THIRD-PARTY-NOTICES.txt). XenCADtoPDF does not include or redistribute any CAD engine, CAD-vendor binaries, fonts, plotters, PC3 files, or plot-style files — DWG/DXF rendering is performed entirely by the customer's own separately licensed CAD application.

PDFsharp (6.2.4)

MigraDoc (6.2.4)

.NET 10 and the Windows Presentation Foundation

Microsoft.Extensions.DependencyInjection.Abstractions / Microsoft.Extensions.Logging.Abstractions

Lucide Icons

Copyright © 2026 Lucide Icons and Contributors; portions from Feather, © 2013–present Cole Bemis
Licensed under ISC / MIT

Syne (embedded font, ExtraBold weight)

Notes:

Xen-Monochrome.ctb and Xen-Color.ctb, the two plot-style tables that come with XenCADtoPDF for use with its built-in engine only, are Xenmark's own work, not third-party.
Microsoft.Extensions.DependencyInjection.Abstractions and Microsoft.Extensions.Logging.Abstractions are required by PDFsharp and shipped alongside it as the two DLLs of those names.
.NET / WPF / Windows APIs are Microsoft platform components, not separate bundled third-party app dependencies
XenCADtoPDF drives the user's own separately-licensed CAD application via COM automation. No CAD vendor binaries are bundled.
XenCad.Engine (built-in fallback renderer) is a Xenmark component. Third-party notices for its own dependencies are included in that package.

XenCompare — Third-Party Components

PDFium (page renderer, shipped as pdfium.dll)

pdfium-binaries (build of pdfium.dll)

PDFiumCore (PDFium .NET bindings)

SkiaSharp / SkiaSharp.Views.WPF

Skia (graphics library used by SkiaSharp)

OpenTK (shipped with SkiaSharp.Views.WPF)

GLWpfControl (shipped with SkiaSharp.Views.WPF)

.NET and WPF

Lucide Icons (drawn as geometry paths, not bundled as files)

Copyright © Lucide Icons and Contributors; portions derived from Feather, © Cole Bemis
Licensed under ISC (Feather portions MIT)

Syne (wordmark font)

Notes:

This list matches the third-party notices shown inside XenCompare (About → Third-party notices).
PDFium and Skia are each built with further open-source libraries — for example FreeType, OpenJPEG and libjpeg-turbo in PDFium, and libpng, zlib, Expat, libjpeg-turbo and libwebp in Skia — each under its own permissive licence.
The .xlsx export is written by XenCompare's own code; no spreadsheet library is bundled.

XenCommand — Third-Party Components

The open-source Rust crates compiled into XenCommand 1.0 (from its Cargo.lock). Each offers the MIT licence and XenCommand uses it under MIT; the full licence texts are shown in the app under Privacy & licences (the shield button).

windows (0.62.2), windows-core (0.62.2), windows-collections (0.3.2), windows-future (0.3.2), windows-link (0.2.1), windows-numerics (0.3.1), windows-result (0.4.1), windows-strings (0.5.1), windows-threading (0.2.1)

serde (1.0.229), serde_core (1.0.229), serde_json (1.0.151)

itoa (1.0.18)

zmij (1.0.23)

regex-lite (0.1.9)

memchr (2.8.3)

Notes:

Toolbar icons use the Segoe MDL2 Assets font that comes with Windows; no icon or font files are bundled.
Windows, Win32, Direct2D, DirectWrite and UI Automation are Microsoft platform components, not bundled third-party dependencies.
Build-only tools (the Rust compiler, macros and the resource compiler) are not shipped in the app.
Rust standard library: MIT OR Apache-2.0

Third-Party Licenses

XenPDF — Third-Party Components

eframe / egui

lopdf

rfd (Rusty File Dialogs)

image

pdfium-render

winapi

PDFium (page renderer, shipped as pdfium.dll)

pdfium-binaries (build and packaging of pdfium.dll)

Syne (embedded font, ExtraBold weight)

Lucide Icons (embedded icon font)

XenShot — Third-Party Components

Microsoft.Extensions.Hosting / Microsoft.Extensions.*

Serilog

Serilog.Extensions.Hosting

Serilog.Extensions.Logging

Serilog.Sinks.File

H.NotifyIcon / H.NotifyIcon.Wpf

H.GeneratedIcons.System.Drawing

Vortice.Direct3D11 / Vortice.DXGI / Vortice.DirectX

Vortice.Mathematics

SharpGen.Runtime / SharpGen.Runtime.COM

Lucide Icons

Feather Icons portions

Syne (embedded font, ExtraBold weight)

XenCADtoPDF — Third-Party Components

PDFsharp (6.2.4)

MigraDoc (6.2.4)

.NET 10 and the Windows Presentation Foundation

Microsoft.Extensions.DependencyInjection.Abstractions / Microsoft.Extensions.Logging.Abstractions

Lucide Icons

Syne (embedded font, ExtraBold weight)

XenCompare — Third-Party Components

PDFium (page renderer, shipped as pdfium.dll)

pdfium-binaries (build of pdfium.dll)

PDFiumCore (PDFium .NET bindings)

SkiaSharp / SkiaSharp.Views.WPF

Skia (graphics library used by SkiaSharp)

OpenTK (shipped with SkiaSharp.Views.WPF)

GLWpfControl (shipped with SkiaSharp.Views.WPF)

.NET and WPF

Lucide Icons (drawn as geometry paths, not bundled as files)

Syne (wordmark font)

XenCommand — Third-Party Components

windows (0.62.2), windows-core (0.62.2), windows-collections (0.3.2), windows-future (0.3.2), windows-link (0.2.1), windows-numerics (0.3.1), windows-result (0.4.1), windows-strings (0.5.1), windows-threading (0.2.1)

serde (1.0.229), serde_core (1.0.229), serde_json (1.0.151)

itoa (1.0.18)

zmij (1.0.23)

regex-lite (0.1.9)

memchr (2.8.3)

This website (xenthum.eu)

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