Automated Digital Signing for Engineering Drawings

Client Context

A mid-sized engineering consultancy needed to issue digitally signed PDFs for government and private sector projects. Signing wasn’t just a stamp – it required encrypted, certificate-backed signatures to prove authenticity and prevent tampering. The process was eating up time, distracting staff, and delaying submissions.

The Challenge

  • Manual signing of every drawing PDF, taking 30 seconds to 10 minutes each
  • Administrators pulled away from higher-value tasks just to run the process
  • A single encrypted USB drive used for signing created a bottleneck – only one machine could sign at a time
  • Engineers working late or remotely couldn’t issue drawings until signatures were applied
  • Submissions often held up by this last, repetitive step

The Solution

I built a secure web application that automated the entire signing process.

  • Staff upload or link a folder of PDFs
  • The system locates the signature block, applies the encrypted digital signature, and logs the action
  • Signed documents remain on the client’s local servers; the web app only provides the workflow and audit trail
  • Engineers and technicians can now self-serve the process – no bottlenecks, no delays
Reci Engineering's drawing digital signature secure login page
Secure login page allows only employees access
Reci Engineering's drawing digital signature list of successful signatures
List of succesful drawings signed and links to them

The Impact

  • Hours saved daily – signing now takes minutes for entire sets, not hours of manual work
  • No more single-point dependency on a physical USB token or one administrator
  • Faster submissions – engineers can issue drawings the moment they’re approved
  • Improved compliance – every signature logged with a clear audit trail
  • Scalable – from a handful of PDFs to full drawing sets, without extra admin effort

The Impact

  • Hours saved daily – signing now takes minutes for entire sets, not hours of manual work
  • No more single-point dependency on a physical USB token or one administrator
  • Faster submissions – engineers can issue drawings the moment they’re approved
  • Improved compliance – every signature logged with a clear audit trail
  • Scalable – from a handful of PDFs to full drawing sets, without extra admin effort

Call to Action

Got a process that drains time and stalls projects? Let’s automate it. Contact me to talk about streamlining your workflows.

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