Engineering files contain proprietary designs, specifications, and technical data that need to stay in the right hands. WeTransfer lets you lock any transfer with a password before sharing the link, so recipients must enter it before accessing a single file. No software to install, no configuration, and password protection is built into every plan.
Keep your files private
When you're sharing CAD drawings, schematics, 3D models, or structural calculations, controlling who can open those files matters as much as getting them there reliably. WeTransfer builds the password field directly into the upload window, so the lock is set before anything leaves your hands, and the password is never included in the notification email — you pass it to the right people through a separate channel of your choice. Files are transferred exactly as you uploaded them, with no compression, no re-encoding, and no quality loss, so a large CAD assembly, a high-resolution PDF, or a ZIP of design assets arrives precisely as exported from your authoring tool. You can add, update, or remove the password on any transfer from your Transfers panel at any time after sending, without re-uploading anything. For projects that demand tighter control, password protection works alongside restricted access, which limits downloads to a named list of email addresses on top of the password itself.
Our features are designed to minimize how much of your data we — or anyone else — can access, so you can keep what's yours, yours.
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Give people simple tools, and they'll do extraordinary things. Ultra-fast file transfers, built-in customization, easier team collaboration. That's the magic of WeTransfer.

Move your ideas forward
Share content with a unique link, give anyone a free pass to send you 200 GB files, and stay in control of transfers — even after you hit send.

Collaboration tools for teams of all sizes
With tools designed to enhance collaboration, get everyone in your team talking and moving as one, without disrupting their workflow.

Share with confidence and security
From password protection to file encryption, WeTransfer has all the built-in security features you need to safeguard your work.
All your questions answered.
When you add your files to the transfer window, you'll find a password field in the transfer options before you click Send. Enter the password there, complete the transfer, and anyone who opens the download link will be prompted to enter it before they can access anything. The password is never sent inside the WeTransfer notification email, so you share it with your recipients through a separate channel, such as a direct message or a project management tool.
WeTransfer places no restrictions on file type, so you can password-protect transfers containing CAD files, DWG or DXF drawings, STEP and IGES 3D models, PDFs, ZIP archives of project deliverables, Office documents, and more. Files go out exactly as you uploaded them, with no re-encoding or compression, so the receiving engineer opens the same file you exported from your design tool.
Yes. Go to your Transfers panel, open the transfer, and you can set a new password, change the existing one, or remove it entirely, all without re-uploading the files. The change takes effect immediately, so if a project handoff wraps up or a new team member needs access under a different code, you can adjust it on the spot.
No. Recipients can open the download link and enter the password without creating a WeTransfer account. This keeps things straightforward for contractors, clients, or site teams who may not use WeTransfer regularly, there is nothing for them to sign up for or install.
Yes. You can apply both a password and restricted access to the same transfer, which means only people on your specified email list can download it, and they still need the password too. For intellectual property, pre-tender documents, or safety-critical specifications, this two-layer approach gives you confidence that the files reach exactly the right people and no one else.