The Technical Information Gap
In every architecture, engineering, construction, manufacturing, or industrial project, there is a fundamental asymmetry. A relatively small team of technical professionals uses sophisticated software to create, coordinate, and manage the project information. That information includes 3D models, BIM data, drawings, specifications, and other technical documents.
The people who need to act on that information are far more numerous. Subcontractors need current drawings before they start work. Field supervisors need to verify dimensions on site. Clients need to review design progress. Vendors need specifications to prepare quotes. Facility managers need as-built data after handover. Maintenance technicians need equipment models to plan repairs.
Almost none of these people have access to the software used to create the information. An Autodesk Revit license costs hundreds of dollars per month. AutoCAD, SolidWorks, and Navisworks add further cost and training burden. The result is that the majority of people who depend on technical project information have no reliable way to access it in its native form.
The team that creates the data
- Architects and BIM managers
- Engineers and designers
- VDC and coordination teams
- CAD technicians
The much larger group that needs it
- Contractors and subcontractors
- Field supervisors and crews
- Clients and owners
- Vendors, fabricators, and suppliers
- Facility managers and operators
- Inspectors and reviewers
Why PDF Exports Are a Poor Substitute for Native Project Information
The most common workaround for the technical information gap is the PDF export. When someone needs to share a drawing or model with a party who does not have the software, the default response is to export a PDF and send it. This approach is understandable and deeply flawed.
A PDF of a drawing or model is a static snapshot. It captures what the design looked like at one moment in time, flattened into a format that eliminates most of the intelligence embedded in the original file. 3D geometry becomes a 2D image. Parametric relationships are lost. Layers become fixed. Measurements that could be queried from the model must now be read from a printed representation.
For a contractor trying to verify a clearance, an exported PDF of a mechanical drawing is a significant step down from the source model. For a facility manager trying to identify a specific piece of equipment in a large building, a PDF of a floor plan provides a fraction of the information available in the original BIM file. For a vendor quoting on a complex fabrication, a 2D PDF of a 3D model introduces interpretation risk that could affect accuracy and pricing.
Beyond information loss, PDF distribution creates version management problems. Recipients save local copies. Those copies do not update when the design changes. Within weeks of a project starting active distribution, multiple parties are working from different versions of the same drawing, none of which are current.
The real cost of PDF distribution
When a contractor builds from an outdated drawing, the cost is not the PDF. The cost is the rework, the delay, and the dispute. The PDF was never the problem. The problem was the absence of a controlled distribution process for the original project information.
Why Email, Dropbox, and Google Drive Are Insufficient for CAD File Sharing
Teams that recognize the limitations of PDF distribution often turn to cloud file sharing as the next solution. Dropbox, Google Drive, and similar tools solve some problems and create others.
Email attachment limits typically cap out between 10MB and 25MB. A single Revit model can exceed 200MB. A coordinated BIM package for a mid-size commercial project can run into gigabytes. File size alone disqualifies email as a distribution channel for native CAD and BIM data. Beyond size, email provides no access control, no audit trail, no expiration, and no way to ensure recipients are viewing the current version.
Dropbox and Google Drive
Generic cloud storage handles large files, but it was built for documents, not technical project information. Dropbox and Google Drive cannot render a DWG file, open a Revit model, or display an IFC dataset. Recipients who receive a shared folder link still need to download files and open them locally, which means they still need the software to view them.
Access management in generic cloud storage is also poorly suited to project workflows. Shared folder links are often permanent. There is no straightforward way to expire access when a contract ends. Audit trails are limited. And when a subcontractor leaves a project, cleaning up their access across multiple shared folders is a manual process that frequently does not happen.
| Capability | Dropbox / Drive | ShareCAD | |
|---|---|---|---|
| Open native CAD files without software | No | No | Yes |
| Large file support | No | Yes | Yes |
| Access expiration | No | Limited | Yes, every share |
| Audit trail | No | Limited | Yes, built in |
| Instant access revocation | No | Manual | Yes |
| Password-protected sharing | No | Limited | Yes |
| Version control | No | Basic | Yes |
| No recipient account required | Yes | No | Yes |
Why Generic CAD Viewers Are Not Enough
Free and low-cost CAD viewers solve the "I cannot open this file" problem for an individual. They do not solve the organizational distribution problem.
A generic viewer requires the recipient to download the file, install software, and open it locally. This creates friction for non-technical users and does nothing to address the governance side of the problem. There is no controlled access. There is no record of who viewed the file. There is no expiration date. There is no way to prevent the recipient from sharing the file further. There is no centralized workspace where the right version is always available.
Viewers are tools for individuals. What AEC and industrial organizations need is infrastructure for distribution. Those are different problems requiring different solutions. The viewer is a component of the solution, not the solution itself.
How ShareCAD Solves the CAD Distribution Problem
ShareCAD is a secure distribution platform for CAD files, BIM models, drawings, and technical project information. It sits between the teams that create technical data and everyone else who needs access to it, providing browser-based access, controlled distribution, and a complete audit trail.
The viewer built into ShareCAD supports native CAD and BIM formats including DWG, RVT, IFC, STEP, NWD, NWC, SLDPRT, SKP, DXF, and more. Recipients open files directly in their browser. No software installation. No account required. No IT involvement on their end.
Controlled access on every share
Set an expiration date on every link you send. Add password protection. Restrict downloads. When a project closes or a contract ends, access ends automatically.
Full audit trail
Every access event is logged. See who opened a shared link, when, from where, and how many times. Documentation that generic file sharing never provides.
Organized by project
Files sit in structured workspaces organized by project, phase, and discipline. The right version is always findable. Recipients see only what you share with them.
No software required for recipients
Contractors, clients, vendors, and field crews open full 3D models and drawings in their browser. No Autodesk subscription, no plugin, no IT ticket.
Instant revocation
Revoke any shared link immediately. Access ends the moment you revoke it, regardless of whether the link was forwarded or saved.
Collect files without exposing yours
Request Files links let subcontractors and vendors upload directly into your workspace without seeing your other projects or internal folders.
CAD File Sharing by Industry
Architecture Firms
Architects routinely need to share Revit models, AutoCAD drawings, IFC files, and SketchUp models with clients, consultants, engineers, contractors, and planning authorities. Most of these recipients do not have Revit or AutoCAD. ShareCAD gives architecture firms a professional, controlled channel for distributing project information to any stakeholder, with expiring access links that match the project lifecycle. Clients can review design progress in their browser. Consultants receive the correct version with no version confusion. Planning submissions can be distributed with a defined access window.
Engineering Firms
Structural, mechanical, electrical, and civil engineering firms produce technical deliverables that need to reach clients, contractors, authorities, and fabricators. Engineering file sharing has historically meant emailed PDFs or shared drives — both of which create version risk and provide no governance. ShareCAD gives engineering firms a distribution layer where every deliverable is traceable, every access is logged, and every link can be revoked. STEP, IGES, DWG, DXF, and other engineering formats are viewable by recipients without any specialized software.
Construction Companies
Construction projects involve a large number of subcontractors, suppliers, inspectors, and owner representatives who all need access to current drawings and models. ShareCAD gives general contractors a controlled distribution channel for BIM files, Navisworks models, and drawing sets. Field teams access current files from any device without needing CAD software or a VPN. Subcontractors receive only the information relevant to their scope. Access expires when packages are closed out. The result is fewer requests for current drawings, less version confusion on site, and a documented record of what was distributed and when.
Manufacturing Facilities and Industrial Plants
Manufacturing and industrial facilities generate large volumes of CAD data: equipment drawings, P&IDs, 3D models, assembly documentation. Maintenance teams, plant operators, and outside contractors need access to this data but rarely have the engineering software to open it. ShareCAD makes equipment models, piping diagrams, and technical specifications accessible to maintenance crews on the plant floor, contractors performing installation or repair work, and vendors reviewing designs for fabrication — all without requiring CAD licenses across the facility. Access can be scoped by asset, by team, or by contractor relationship.
Facility Owners and Operators
After a construction or renovation project completes, facility owners and operators inherit a significant volume of technical information: as-built BIM models, equipment schedules, MEP drawings, structural documentation. Managing ongoing access to this information for internal teams and external service contractors is a recurring operational challenge. ShareCAD provides facility managers with a structured workspace for building information, with controlled access for the service contractors, vendors, and operations staff who need it. Data is organized by building, system, or asset. Access is scoped to what each party needs. The information is always current and always accessible without specialized software.
Frequently Asked Questions About CAD File Sharing
Do recipients need to create an account to view shared files?
No. Recipients open shared files directly in their browser using a link you send them. No account, no software installation, and no IT involvement required on their end.
What CAD and BIM formats does ShareCAD support?
ShareCAD supports a wide range of formats including DWG, DXF, RVT (Revit), IFC, NWD, NWC (Navisworks), SLDPRT, SLDASM (SolidWorks), SKP (SketchUp), STEP, IGES, STL, OBJ, FBX, GLB, DGN, IPT, IAM (Inventor), Parasolid, and more. Autodesk and proprietary format support is available on Standard, Pro, and Enterprise plans.
How is ShareCAD different from Autodesk Construction Cloud?
Autodesk Construction Cloud is built for Autodesk users collaborating with other Autodesk users. It requires a paid seat for every active participant. ShareCAD is built for distributing technical information to people who do not have Autodesk software. Recipients need no software and no account. ShareCAD is the distribution layer for files leaving the engineering environment, not a replacement for internal design collaboration tools.
Can I control how long someone has access to a shared file?
Yes. Every link you generate in ShareCAD includes an expiration date you set. You can also add password protection, restrict downloads, and revoke access instantly at any time.
Is there an audit trail for shared files?
Yes. ShareCAD logs every access event: who opened a link, when, from where, and how many times. This documentation is available for every share you generate.
How does ShareCAD handle large CAD and BIM files?
ShareCAD is built for technical files. The platform handles large uploads reliably, including desktop uploader support for large batches. For Enterprise storage needs, contact our sales team.
Can I collect files from contractors and vendors?
Yes. Request Files links allow subcontractors, vendors, and clients to upload directly into your ShareCAD workspace without seeing any of your other projects or internal files.
Is ShareCAD suitable for a single user or only for teams?
ShareCAD is $19.99/month for teams of up to 5 users. For larger organizations, Enterprise plans are available — contact sales.
What does technical information distribution mean?
Technical information distribution is the process of getting CAD files, BIM models, drawings, and project data from the teams that create them to the people who need them, in a secure, controlled, and traceable way. It is distinct from file storage and distinct from CAD viewing. It is the organizational problem that ShareCAD is built to solve.
Start Distributing Technical Information the Right Way
ShareCAD gives AEC and industrial organizations a secure, controlled, and auditable way to share CAD files, BIM models, and project information with anyone who needs them. No CAD software required on their end.
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