bdo

.bdoBinary Document Object

MDesign · 2004

Developer
MDesign
Category
Documents
MIME Type
application/vnd.medesign.bed-file
First Released
2004
Open Format
No
File Signature
N/A (Proprietary binary format, no widely documented static header signature)
At a Glance
.bdo
Binary Document Object

.bdo files are proprietary binary documents used by MDesign's eDrawings software for sharing and viewing CAD designs.

Reviewed on August 1, 2026
Compression
Compressed / Binary
Transparency
No
Editability
Low
Best for
CAD viewing

Key Features

  • Stores 2D and 3D CAD design data.
  • Optimized for fast viewing and collaboration.
  • Includes annotations and assembly information.
  • Proprietary binary format for MDesign's eDrawings.

Best For

  • Efficiently sharing complex CAD models for viewing.
  • Collaborating on designs with team members using eDrawings.
  • Reducing file sizes for easy distribution of CAD data.
  • Interactive design review with measurement capabilities.

Less Ideal For

  • Editing original CAD data (use native CAD formats like .dwg or .sldprt).
  • Interoperability with non-eDrawings software (use STEP, IGES).
  • Storing raw parametric data or feature trees.
  • Web-based or universal viewing without dedicated software.

Common Use Cases

  • Sharing CAD designs with clients or collaborators.
  • Reviewing product designs without original CAD software.
  • Archiving design versions for internal reference.
  • Providing interactive design previews for manufacturing.

How to Open It

  1. Download and install the free MDesign eDrawings Viewer from the official MDesign website.
  2. Open the eDrawings Viewer application.
  3. Navigate to File > Open and select your .bdo file.
  4. Alternatively, double-click on the .bdo file, and it should launch with the associated eDrawings Viewer.

What is a .bdo file?

The .bdo file extension is primarily associated with MDesign's "eDrawings" software, which is used for viewing and sharing 2D and 3D CAD designs. These files contain a proprietary binary format that stores complex geometric data, annotations, and assembly information. Although eDrawings can export to more common formats, .bdo files are optimized for efficient viewing and collaboration within the eDrawings ecosystem. They allow users to interact with models, make measurements, and review designs without needing the original CAD software. This makes them useful for sharing designs with stakeholders who may not have specialized CAD tools.

Programs That Open .bdo Files

PlatformProgram
WindowseDrawings ViewerFreeOfficial
macOSeDrawings ViewerFreeOfficial

How to Convert .bdo Files

FormatMethod
.PDFeDrawings Viewer
.SVGeDrawings Viewer
.JPGeDrawings Viewer

Common Problems with .bdo Files

⚠️ Cannot open .bdo file.
Ensure you have the MDesign eDrawings Viewer installed. Download it from the official MDesign website.
⚠️ File is corrupted or incomplete.
Try re-downloading or obtaining the .bdo file from the original source. If the source file was corrupted, the .bdo file will be too.

Frequently Asked Questions

What is an eDrawings file?

An eDrawings file (.bdo) is a proprietary format used by MDesign's eDrawings software to store and share CAD designs, allowing for interactive viewing and markup without needing the original CAD application.

Can I edit a .bdo file?

No, .bdo files are intended for viewing and collaboration, not for direct editing of the CAD data. You would need the original CAD software to modify the design.

Technical Details

The .bdo format is a binary file structure that encapsulates CAD data, including geometry, metadata, and potentially annotations. It is not an open standard and is specific to MDesign's eDrawings application. The binary nature allows for compact storage and fast loading of complex design information.

Did You Know?

The .bdo format was developed by MDesign to facilitate easy sharing of complex engineering drawings.
eDrawings supports viewing of over 30 different CAD file formats, with .bdo being its native viewing format.

Security Information

.bdo files themselves are not inherently malicious, but like any file, they can be a vector for malware if downloaded from untrusted sources. Always ensure your eDrawings Viewer is up-to-date and scanned by antivirus software.

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