PDF Form-Filling AI Agents: How Enterprises are Automating Document-Heavy Operational Workflows

PDF Form-Filling AI Agents: How Enterprises are Automating Document-Heavy Operational Workflows

Jan 15, 2026

We’re introducing Fill PDF Action, a new capability within StackAI – a secure, no-code AI agent building platform used by enterprise teams to automate regulated, high-volume operational workflows.

Why we built it

It’s 2026, and most companies are still filling out PDF forms like it’s the 1990s.

Across banking, healthcare, insurance, and government, form handling remains one of the largest sources of manual effort and operational risk:

• PDFs arrive by email
• Staff copy data across 5–10 systems
• Fields are manually verified
• Errors require rework
• Audit trails are maintained by hand

At scale, this becomes a significant operational bottleneck and compliance risk.

Fill PDF Action replaces this pattern with an automated, auditable workflow.

From emailed form to completed document, automatically

With Fill PDF Action, teams can configure workflows that:

  • Listen for incoming emails with PDF attachments (e.g. with a blank mortgage application form)

  • Identify the correct customer or employee in SharePoint, Drive, or Box (choose from over 100+ integrations)

  • Extract verified data from internal knowledge base / KYC repository

  • Populate every PDF field automatically

  • Route completed forms via email for review or signature

  • Log every request to SharePoint for audit, traceability, and reporting

All AI-filled fields can be highlighted for reviewer visibility.

Designed for real operational workloads

Fill PDF Action supports common regulated workflows including:

  • Mortgage & loan applications

  • Grant filings

  • Claims & reimbursements

  • HR onboarding

  • Compliance & legal paperwork

This is what real AI infrastructure that brings ROI from day 1 looks like.

Enterprise security, governance, and auditability

StackAI is built for environments where governance is non-negotiable:

  • Role-based access control (RBAC)

  • Full audit logs of every request and action

  • SOC 2 Type II, HIPAA and GDPR-aligned workflows

  • On-premise and private deployment options

StackAI Fill PDF Action is available now. Want to learn more? Get a demo here.

Bernard Aceituno

Co-Founder at StackAI

Building AI Agents that simplify work and solve real problems.

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