Convert JT to PDF

A recipient may need a printable document instead of a JT viewer, or an engineering team may need a fixed review record for email, approval, or archiving. Converting JT to PDF usually creates one or more 2D pages; it does not replace the editable 3D CAD model.

What the JT format is

JT (Jupiter Tessellation) is a lightweight 3D CAD visualization format for product structure, tessellated or precise geometry, assemblies, colors, metadata, and, in some workflows, PMI. It is used in PLM, digital mock-up, supplier exchange, and design-review workflows, particularly with Siemens NX and Teamcenter.

JT is standardized as ISO 14306, and its specification is publicly available, but support for individual geometry, PMI, metadata, compression, and assembly features varies between applications. A model.jt file is normally visualization or exchange data, not the full native part or assembly database.

What the PDF format is

PDF is a page-oriented document format that preserves page size, text, vector graphics, raster images, and annotations across viewers and printers. It suits review packages, drawing distribution, manufacturing documentation, approval records, and archives.

A PDF made from a JT view normally contains projected linework or a rasterized view of the visible model. It may retain selectable vector edges and text, but it is not an editable solid model and usually does not preserve the JT assembly hierarchy, metadata, or interactive model behavior. Some CAD applications can create a 3D PDF containing an embedded U3D or PRC model, but support and viewer compatibility are limited; do not assume that a PDF export is interactive.

How to convert JT to PDF

CAD Exchanger Desktop

CAD Exchanger Desktop is suitable when the application and license expose PDF or 3D PDF export rather than only a print function.

1. Open model.jt in CAD Exchanger Desktop.
2. Inspect the assembly tree and hide unwanted components, construction geometry, or internal parts. Apply section cuts, colors, and display modes as required.
3. Set the camera orientation, projection, background, and display or tessellation quality. Create separate views if the complete assembly is too dense for one page.
4. Use File → Export, select PDF or 3D PDF when available, and set page size, orientation, scale, and the views or pages to include.
5. Save as model.pdf. Open the result in a PDF viewer and check page scaling, line weights, labels, colors, annotations, and component visibility.

Available formats and PDF options differ by CAD Exchanger product, edition, and release. If PDF is absent from the export list, use the viewer's print function or export an image and place it in a PDF; this produces a document page, not a 3D CAD PDF.

Siemens JT2Go

JT2Go is a free Siemens viewer for reviewing JT files and printing a displayed view. Open model.jt, expand or hide components, enable required annotations, set the orientation and display mode, then choose File → Print. Select a PDF printer such as Microsoft Print to PDF on Windows or Save as PDF on macOS, and set paper size, orientation, scale, and print quality.

Printing captures the selected view on one or more pages. It normally does not embed the JT model, preserve the complete product structure, or create an editable engineering drawing. Menu names and PDF-printer availability depend on the JT2Go version and operating system.

Siemens NX or the originating CAD system

When the JT was generated from an NX or another CAD-system drawing, export the original drawing directly instead of reconstructing it from the visualization file. Open the drawing or JT data in the originating system, arrange the required sheets and views, and use its PDF or plot command, such as File → Export → PDF where provided. This is the appropriate route for title blocks, dimensions, tolerances, line standards, and sheet metadata.

Online conversion

CAD Exchanger Cloud can be used for a non-confidential JT file when desktop installation is impractical, provided the current service and account offer PDF output. Upload the file, select PDF, configure the available views or page settings, convert it, and download the result. Service menus and supported output formats can change, so confirm PDF availability before uploading.

Do not upload proprietary geometry, export-controlled data, or supplier-restricted models to an online service without authorization. For confidential designs, use a licensed desktop application or the originating CAD system.

Quality and compatibility limits

• The result is view-dependent: camera angle, hidden components, section cuts, projection type, display mode, and print scale determine what appears on the page.
• JT metadata, assembly relationships, PMI, colors, transparency, and precise geometry may be omitted, flattened, or converted to graphics. Verify critical dimensions and annotations against the source.
• A large assembly can create a slow or oversized PDF, while excessive page scaling can make labels and edges unreadable. Use separate views or pages and hide irrelevant components.
• PDF viewers do not provide consistent support for embedded 3D content. If the recipient must rotate, isolate, or measure the assembly, provide the JT file with JT2Go or another compatible viewer as well as the PDF.
• If the JT contains only visualization data, it may not include drawing sheets, tolerances, title-block information, or annotation definitions needed for a drawing-quality PDF.