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Our free and fast tool will convert most 3D mesh or GLB (Graphics Language Transmission Format) model files to a standard IDTF (PDF With integrated 3D Models) file that can then be edited further in most popular 3D editing packages such as Blender or 3D printed without any further processing. Our conversion tool can also batch convert multiple GLB files; up to 25 files at a time can be converted.
To convert your GLB file, click the Upload button above and select the file to convert. Once selected, the file will be converted to a IDTF file and will be ready for download shortly afterwards. For more information about the GLB to IDTF conversion process, see the conversion information section below.
First click the "Upload..." button, select your GLB file to upload. Select any configuration options. When the GLB to IDTF conversion has completed, you can download your IDTF file straight away.
We aim to process all GLB to IDTF conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.
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.
Yes, of course! We do not store the GLB file you submit to us. The resulting IDTF file, once created is deleted 15 minutes after upload and the download link will expire after this time.
Yes! Our GLB to IDTF tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.
Yes. Although you can use an Ad Blocker, if you like our GLB 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.
Yes. When you have converted your GLB to IDTF, there is a "Feedback" option that you can use to let us know of any issues you encountered when converting your file.
Yes! Our GLB tool supports full batch conversions. You can upload up to 25 and GLB files at a time. Our tool will convert them all as quickly as possible. Once completed, you can either download the IDTF files individually or download them all in a single ZIP file.
| Extension | GLB |
| Full Name | Graphics Language Transmission Format |
| Type | 3D Model |
| Mime Type | model/gltf-binary |
| Format | Binary |
| Tools | GLB Converters, 3D Model Voxelizer, Create GLB Animation, GLB Asset Extractor, Text to GLB, GLB Viewer |
| Open With | Blender, MeshLab |
The GLB file format, which can also have the GLTF file extension depending on whether the content is binary or text/JSON, is a 3D file format used to describe 3D worlds and, as such, contains geometric data such as vertices, faces, normals, animations, and other 3D scene-related data.
The format, described by its creators as the "JPEG of 3D", has gained in popularity and is supported by a wide range of 3D modeling applications such as Blender and MeshLab. The GLB format is an open standard that is maintained by the Khronos Group.
If your GLB file contains texture files and other texture-related data, these will be included in the conversion process.
The IDTF file format is a bespoke format that enables interactive 3D content to be embedded within a PDF document. Currently, only Adobe Reader and PDF-XChange Editor are able to render PDF documents that contain this 3D content.
IDTF files are a simple text-based format containing 3D geometry defined using vertices and faces in a structured hierarchy. Prior to importing the IDTF file to the PDF, it must be converted to a U3D file format using one of the free applications, such as IDTFConverter.
Currently, only mesh geometry will be carried over from your source model to the final IDTF file for download.
Converting from the GLB file format to IDTF can be a complex process, and any tool used for this conversion process needs to be able to handle a variety of data conversion tasks as well as identify any defects within the 3D model and fix them. Here we will explain the conversion process used by our tool to accurately convert your GLB file to a valid IDTF 3D model. Let's start with the conversion process, which involves the following steps:
In its simplest form, an GLB file is a binary data file containing 3D data such as vertices, faces, normals, and more. When combined, these make up the 3D model you see on your screen.
When our tool reads this 3D data, all we are interested in are the vertices, faces, and normals, as this is the only data that can be accurately converted into the final IDTF file.
The GLB file can contain other data, such as material definitions and textures, that describe how a particular set of 3D geometry should be rendered. As we are creating an IDTF file, which does not support materials and textures, we will be ignoring this data if it is present in the GLB file.
For more information regarding the GLB file format, please see this great article that goes into a lot of detail explaining the GLB format.
With the GLB file data read, our tool generates an internal representation of the full 3D model and will attempt to fix any geometry issues encountered. Along with repairing any issues with the 3D model, the tool will remove any duplicated vertices and prepare the model for exporting to the IDTF format.
With the conversion process entering its final stages, our tool now needs to take the in-memory 3D model we have created in step 2 and convert it to the IDTF format.
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