Form Copilot
Forms are messy: missing values, mismatched formats, and fields that need human judgment.
Form Copilot helps fill PDF forms step by step, while the user reviews, corrects, and approves each answer. AI handles the repetitive work. The human keeps the final say.
View source on GitHubFill PDF forms online with AI, with a human in the loop.
Form Copilot is an AI assistant that reads any PDF, fills the fields step by step, and lets the user review every change before submitting. It runs inside the SimplePDF editor, so the document never leaves the browser.
How it works
Open any PDF in your browser
Drop in a PDF or load one from a URL. SimplePDF detects existing form fields, and you can add fields on scanned documents in seconds.
Chat with the AI assistant
Ask questions, paste data, or just say what you want. The assistant focuses fields, fills values, navigates pages, and explains its choices as it goes.
Review and submit the filled form
Every AI action is visible in the editor. Correct anything, sign where needed, and submit straight to your storage.
Why fill PDF forms with AI?
AI-assisted, human in the loop
Automatic form filling has limits. Form Copilot fills what it can and hands off fields a human should own, like signatures or judgment calls.
Works on any PDF
Native form fields, scanned documents, mixed layouts. Form Copilot reads the page content and fills accordingly. No special PDF format required.
Privacy by design
PDF data never leaves the browser. Chat traffic flows through your own server to your own AI provider. Submissions go directly to your storage on Pro and Premium plans.
Open source and forkable
The reference implementation is MIT-licensed. Clone it, drop in your company identifier, wire up your AI provider, and ship Form Copilot inside your own product.
Built for forms that need a human in the loop
Tax
Tax forms like the IRS W-9 combine identity fields, classification choices, and a signature. Form Copilot helps fill the identity section, explains each classification option, and leaves the signature to the user.
HR onboarding
Employment eligibility forms like the USCIS I-9 mix free-text identity fields with attestations and tight formatting rules. Form Copilot fills what it can, flags the sections that need a human review, and hands off for signatures.
Healthcare
Patient intake and claims forms often contain sensitive data and require review. Form Copilot helps complete the form step by step using your organization's approved AI provider.
Insurance
Applications, claims, and endorsements often combine structured data with policy-specific details. Form Copilot helps prefill what it can, explain fields, and leaves the final review to the user.