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3D PDF Reader

3D PDF Reader

by Tech Soft 3D

16 ratings
150 reviews
📊 Productivity

Archived App (Last seen on 20 Apr 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • October 19, 2012
  • January 16, 2018

Features

Developer

Tech Soft 3D
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3D PDF Reader screenshot #1 for iPhone
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iphone
ipad
⭐150
Reviews↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
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About

View and interact with 3D PDF data directly on your mobile device. This app offers comprehensive support for various 3D file formats and advanced viewing features.

✓Reads PDF files with 3D content
✓Supports PRC, U3D, HSF, STL, OBJ, JT, IGS, STP, IFC, X_B, X_T formats
✓Calculates physical properties per part
✓Creates complex section cuts
✓Intuitive multi-touch gestures for navigation
✓Isolates or hides assembly components
✓Loads models from email or cloud storage
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What's New in 3D PDF Reader

3.8.1

January 16, 2018

This app has been updated by Apple to display the Apple Watch app icon. Fix crash on smaller form factor iPhones running iOS 11.

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User reviews

Most RecentHighest RatedLowest Rated

Perfetta

Applicazione super utile. Riesce ad aprire file anche molto pesanti e farli girare in maniera super fluida.
ingmecc97ingmecc97

Best STEP viewer

Open heavy STP files without problems, can do section views.
It is amazing
topino92topino92

Used to work well

...but doesn't anymore. It doesn't open files now and it doesn't integrate with the Files app. It doesn't even fill the screen of some iPads. Needs an update.
MarsmiteMarsmite

One of best simple app

It’s really best app which is useful for 3D pdf viewer ,simple , and includes all feature , more convenient then pc in many case
Hope you can release 3d assembly viewer in all possible extensions like .stp , .igs , .stl etc
Patel MachineryPatel Machinery

Uups - opened files are deleted from original folder….

Hi there. The software displays all sources as described, yet as soon as a file is opened, it is DELETED from its original folder - and cannot be found by search again. It is the shown in the „recent“ list of PDF Reader, can also still be opened and used, but there is no possibility so save it from there back to the original folder. That is quite a problem if you open something which is not yet backed up. Where on the MacOS are the „recent“ files stored? Can you provide an update which stops „deleting“ files when opening them? MacOS Sequoia 15.2…
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DonnalessaDonnalessa
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FAQ

What does the 3D PDF Reader app do?

The 3D PDF Reader app allows you to view and interact with 3D PDF data directly on your tablet or smartphone. It extends the functionality of 3D PDF documents beyond the desktop, enabling mobile access to rich 3D content.

What file formats does 3D PDF Reader support?

This app supports a wide range of 3D file formats, including PDF files with 3D content, .PRC, .U3D, .HSF, .STL, .OBJ, .JT, .IGS, .IGES, .STP, .STEP, .IFC, .IFCZIP, .X_B, .X_T, .X_MT, and .XMT_TXT. It offers 100% format support for the ISO-certified PRC format.

Is 3D PDF Reader free to use?

Yes, the 3D PDF Reader app is available for free. There are no in-app purchases or advertisements mentioned in the provided description.

How can I load 3D models into the app?

You can load 3D models directly into the 3D PDF Reader from an email attachment. Additionally, it supports loading models from cloud-based storage applications such as Box or Dropbox.

What are some of the advanced features of 3D PDF Reader?

Beyond basic viewing, the app supports features like isolating and hiding parts in an assembly, creating complex section cuts using multiple cutting planes, and querying part names of objects. It also allows selection on Product Manufacturing Information (PMI) to determine associated features.