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Convert your CDT file to OBJ

Use our free and fast online tool to convert your CDT (Corel Draw) image or logo into 3D OBJ (Wavefront) mesh/model files suitable for printing with a 3D printer or for loading into your favorite 3D editing package.

Upload a CDT

Click the "Upload a File" button and select CDT to upload. The maximum file size is 100MB.

Select your Options

Set the dimensions and other options, and click the "Convert to OBJ" button to convert your CDT to OBJ.

Download your OBJ

Click the download link once completed to receive your OBJ file.

Tool

This setting allows you to specify how your CDT vector file is converted to an OBJ model. The Extrude options will extrude your vector file into 3D space, while the Standard options will apply a heightmap process to your CDT file.

Detail

The setting can be used to alter the detail of the final OBJ model that is created. The default setting of Medium works well for most Extrude and Heightmap conversions, with the High setting recommended for highly detailed CDT vector files.

Add Base

This setting, when given a height of more than zero, will instruct the tool to add a solid 3D base to the final OBJ model. The selected unit of measurement specifies the height of the base.

Remove Background

When this option is enabled, the tool will automatically attempt to make the background of your image transparent.

Specify Color

Manually specify your image background color rather than our tool trying to automatically work it out.

Color

If the tool is unable to identify the background and you know the background color, you can specify it here.

Tolerance

This value can be adjusted to control the background removal tolerance. The higher the value, the more background is removed.

A higher value is useful for creating smoother results if your image is anti-aliased.

Invert Output

When the Invert Output option is checked, the pixel brightness is reversed, i.e., black becomes white and white becomes black, resulting in a 3D model that is reversed.

Units

This setting tells the tool how to size the final 3D model when using the settings below for Width, Height, and Depth settings.

Upload Color Overlay

When using either the Color Extrude or Heightmap options within the Tool menu, you can optionally upload a separate image that can be used to colorize your 3D model.

Color Conversion

This setting instructs the tool on how to interpret the color information of the elements in your CDT vector file, thereby influencing the creation of the 3D OBJ model. The grayscale option is most commonly used when working with heightmaps, unless you are dealing with specific requirements that necessitate the use of color.

Merge Similar Colors

Use this value to merge similar colors; this is useful if your vector file is of low quality. A higher number can help reduce the effects of anti-aliasing in the CDT file.

Hole Reduction

With this setting, it is possible to reduce the inclusion of small holes within the 3D model caused by small, darker areas of the source CDT file, which can be useful in situations where the source image has not been optimized for use with the tool.

Transparency Conversion

When your CDT file has a transparent background, this option can instruct the tool on how to treat the transparency, with the transparency converted to either black or white.

Enable Smoothing

When this setting is enabled, the conversion tool will attempt to smooth out any "spikes" within the 3D model that are caused by contrasting pixels in the vector file being in close proximity to one another.

Z-Axis Mirror

With this option enabled, the tool will mirror the 3D geometry of the generated OBJ model along the Z-axis.

Generate Preview

If you would like the tool to create a 3D preview of your model, then please select this option. It is on by default.

Generate Normals

Use this option to generate Face or Vertex (Smooth) normals in the final 3D model. Vertex normals give the mesh a smooth appearance. You can choose to not create Normals using the None option to reduce the file size.

File Format Information for CDT to OBJ

ExtensionCDT
Full NameCorel Draw
TypeVector
Mime Typeapplication/octet-stream
FormatBinary
ToolsCDT Converters, CDT Viewer
Open WithInkscape

Description

CDT is a native file format used by CorelDRAW, created in 1989. It is a vector graphics format that started life on Windows 2 and has evolved over the years to support newer features. It is still as popular as ever.

These files are binary in format and usually represent a group of assets in a zip format (while retaining the CDT file extension). CorelDRAW is still being developed today and is the primary program for working with CDT files.

Description

The OBJ file format, originally created by Wavefront Technologies and later adopted by many other 3D software vendors, is a simple text-based file format for describing 3D models/geometry. This data can include vertices, faces, normals, texture coordinates, and references to external texture files.

As the format is text-based, it is relatively straightforward to parse in 3D modeling applications. A downside of the text-based format is that the files can be rather large compared to similar binary formats such as STL and compressed files such as 3MF.

OBJ Notes

Our tool will save any material and texture files separately; these additional files will be included with your final OBJ file at the time of download.

Supported Features

  • Mesh geometry
  • Materials (Via an MTL file)
  • Textures (PNG, JPG, TGA formats)

Will the OBJ file retain the textures from my CDT file?

Yes! If your CDT file contains textured geometry, the texture image files along with the texture coordinates (UV data) will be exported with the final OBJ file.

How long does it take to convert my CDT to OBJ?

We aim to process all CDT to OBJ conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.

How accurate is the CDT to OBJ conversion?

We aim to create the most accurate conversions with our tools. Our tools are under constant development with new features and improvements being added every week.

Is it safe to convert my CDT to OBJ on ImageToStl.com?

Yes, of course! We do not store the CDT file you submit to us. The resulting OBJ file, once created is deleted 15 minutes after upload and the download link will expire after this time.

Do I need a high-spec. computer to use the CDT to OBJ converter?

No. All our conversion tools process your CDT file on our dedicated conversion servers, meaning you can use our tools on low-spec computers, laptops, tablets, and mobile devices and receive your converted OBJ file quickly.

Can I convert my CDT to OBJ on Windows, Linux, Android, iOS or Mac OS?

Yes! Our CDT to OBJ tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.

What if I am using an Ad Blocker, will that affect things?

Yes. Although you can use an Ad Blocker, if you like our CDT conversion tool please consider white-listing our site. When an Ad Blocker is enabled there are some conversion limits on some of our tools and processing/conversion times will be longer.

Can I get support with converting my CDT to OBJ?

Yes. When you have converted your CDT to OBJ, there is a "Feedback" option that you can use to let us know of any issues you encountered when converting your file.

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