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Our free and fast tool will convert most 3D mesh or OFF (Object File 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.
To convert your OFF 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 ready for download shortly afterwards. For more information about the OFF to IDTF conversion process see the conversion information section below for more information.
Here are 2 simple steps to convert your OFF to IDTF.
First click the "Upload..." button, select your OFF file to upload. Select any configuration options. When the OFF to IDTF conversion has completed, you can download your IDTF file straight away.
We aim to process all OFF 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 OFF 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 OFF 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 OFF 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.
| Extension | OFF |
| Full Name | Object File Format |
| Type | 3D Model |
| Mime Type | text/plain |
| Format | Text |
| Open With | MeshLab, CAD Assistant |
The OFF file format is a simple text-based format capable of storing 2D and 3D geometry and was originally developed for the Geomview application. There is also an extension to the OFF format used by the Stella4D application to enable storage of four-dimensional data.
The format can contain common vector information such as vertices, faces, shape, edge information and also has support for including color information. As the format is text based the files can become rather large with no built-in compression options available.
If your OFF file contains face colors these will be imported and mapped where possible.
| Extension | IDTF |
| Full Name | PDF With integrated 3D Models |
| Type | 3D Model |
| Mime Type | text/plain |
| Format | Text |
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.
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