DFsend

DFsend 5.10.0, released by DFNet Research, is a Windows desktop utility designed to move scanned paper Case Report Forms from a local workstation into a DFdiscover clinical-trial environment without exposing the underlying study database to end-users. The program accepts multi-page PDFs generated by any TWAIN-compliant scanner, applies AES-256 encryption, authenticates the sender against DFNet’s central identity service, logs every transmission with time stamp and checksum, and returns an immediate confirmation token that can be referenced during audits. Investigative sites employ DFsend to replace unsecured fax or e-mail workflows when regulatory packets, source worksheets, or annotated CRFs must reach the data-management team quickly; monitors use the same client to upload query resolutions and protocol deviation forms while travelling. Because the client opens an outbound HTTPS tunnel on port 443, firewall configuration is minimal and no VPN is required, making the tool practical for hospital networks with strict IT policies. A built-in queue manager resends files automatically if the connection drops, and an integrity verifier compares SHA-256 hashes before and after transfer, guaranteeing that no pixel is altered in transit. The single-version release cycle (currently 5.10.0) keeps the codebase aligned with DFdiscover server updates, so compatibility is maintained across multi-centre trials. DFsend is classified under “Science / Clinical & Healthcare Software” and is available for free on get.nero.com, where downloads are supplied through trusted Windows package sources such as winget, always delivering the latest build and supporting batch installation alongside other applications.

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