Aspose.3D  for .NET

Add Blind Watermark to STL via C#

Build your own .NET apps to watermark STL files using server-side APIs.

How to Watermark to STL File Using C#

In order to watermark STL file, we’ll use

Aspose.3D for .NET

API which is a feature-rich, powerful and easy to use API for C# platform to be used with add any watermark. Open


package manager, search for Aspose.3D and install. You may also use the following command from the Package Manager Console.

Package Manager Console Command

PM> Install-Package Aspose.3D

Steps to Add Blind Watermark to STL via C#

Aspose.3D makes it easy for the developers to add blind watermark to the STL file with just few lines of code.

  • Load STL file via the constructor of Scene class
  • Get the mesh class of Aspose.3D
  • Add watermark and password using Aspose.3D’s EncodeWatermark method
  • Call the Scene.Save method with object

System Requirements

Aspose.3D for .NET is supported on all major operating systems. Just make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with .NET Framework, .NET Core, Mono
  • Development environment like Microsoft Visual Studio
  • Aspose.3D for .NET referenced in your project

C# code to Add Blind Watermark to STL

//The source file that needs to be watermarked and the output file after saving
string file = "template.stl";
string output =System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".fbx";

// create an instance of Scene
Scene scene = new Scene(file);

//Add watermark and password to files
var numMeshes = 0;
scene.RootNode.Accept((Node node) =>
    var mesh = node.GetEntity<Mesh>();
    if (mesh != null)
        mesh = Watermark.EncodeWatermark(mesh, "HelloWorld", "1234");
        if (mesh != null)
            node.Entity = mesh;
    return true;

//Save the file in the format you want
scene.Save(output, FileFormat.FBX7400ASCII);
  • About Aspose.3D for .NET API

    Aspose.3D is a CAD and Gameware API to load, modify and convert 3D files. API is a standalone and does not require any any 3D modeling or rendering software. One can easily use API for Discreet3DS, WavefrontOBJ, STL (ASCII, Binary), Universal3D, FBX (ASCII, Binary), Collada, glTF, PLY, GLB, DirectX and more formats.

    Free App to Add Blind Watermark to STL

    Other Supported App to Add Blind Watermark to Formats

    Using C#, One can also add blind watermark to many other file formats including.

    3MF (3D Manufacturing Format)
    AMF (Additive Manufacturing Format)
    ASE (2D Animation File)
    DAE (Digital Asset Exchange)
    DXF (Drawing Interchange Format)
    DRC (Google Draco)
    FBX (3D Format)
    GLB (3D File Binary Representation)
    GLTF (GL Transmission Format)
    JT (Jupiter Tessellation File)
    OBJ (3D File Format)
    PLY (Polygon File Format)
    PDF (3D PDF)
    RVM (AVEVA Plant Design Model)
    3DS (3D Studio Mesh File Format)
    U3D (Universal 3D)
    VRML (Virtual Reality Modeling Language)
    X (DirectX Model Image)
    USD (Universal Scene Description)
    USDZ (Universal Scene Description Zip Archive)