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IGS PDF
File conversion

Convert IGS to PDF

Verified by Adam B.· reviewed by FE Editorial ·updated Aug 4, 2026
QUICK ANSWER
Is it possible to convert IGS to PDF?
Yes - IGS converts to PDF.

Open the .igs in TurboCAD, Autodesk Inventor, or AutoCAD, set the desired view angle, and use File > Export or Print to PDF. The result is a flat 2D image of the model - recipients cannot rotate it or extract geometry from it.

8 programs
Also to PDF: LTX · TEX · DWG

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Why convert IGS to PDF?

.PDF is the standard format for sharing drawings with clients, manufacturers, or approval workflows who do not have CAD software. It locks the view so the part looks the same on every screen and can be printed without a CAD license. An .igs file stores NURBS surfaces and wireframe geometry; a PDF export renders one static view of that geometry as a flat document.

How to convert IGS to PDF

TurboCAD EASIEST

Open the .igs file in TurboCAD, set the desired view, and use File > Export or File > Print with a PDF printer selected.

Autodesk Inventor APP

Import the .igs into Autodesk Inventor, orient the model, and print or export to PDF from the File menu.

AutoCAD APP

Open the .igs in AutoCAD and use File > Plot or Export to PDF to produce a flat 2D document of the current view.

CrossManager APP

Load the .igs in CrossManager and use the built-in export function to produce a PDF of the model view.

Programs that convert IGS

ACE 3000
Autodesk Inventor
CrossManager
MEDUSA4
TransMagic
TurboCAD
AutoCAD
CATIA
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About these formats

.IGS IGES - Initial Graphics Exchange Specification (CAD model)

An IGS file is a 3D (or 2D) CAD model stored in IGES format, a vendor-neutral ASCII standard used to move part geometry between different CAD programs. To view it free, open it in FreeCAD,…

Open .IGS details →
.PDF Portable Document Format

A PDF (Portable Document Format) is a fixed-layout document that looks identical on every device - fonts, images, and layout are all embedded. Open it in any browser or the built-in viewer…

Open .PDF details →

Quality & what to watch

  • The PDF is a flat 2D snapshot of one view; recipients cannot rotate, measure, or extract geometry - for geometry sharing, send the .igs or a .stp (STEP) file instead.
  • Interactive 3D PDF, where the model can be rotated inside the document, requires dedicated creation tools such as Tetra4D and is a different product from a standard PDF export.
  • Paper size, orientation, and resolution can be set in the print or export dialog before confirming output.

Frequently asked questions

Can the recipient rotate the 3D model inside the PDF?
Only with a 3D PDF created by dedicated software like Tetra4D; a standard export from a CAD viewer produces a flat, non-interactive image.
Is there a free option on any operating system?
Yes - open the .igs in CAD Assistant (free, Windows/macOS/Linux), orient the model, and print to the system PDF printer (Save as PDF on macOS, Microsoft Print to PDF on Windows).
What if the recipient needs to work with the geometry?
Share the original .igs or a .stp (STEP) file directly; STEP is more widely supported for downstream CAD work than a PDF snapshot.