Fill PDF forms with an AI copilot using tool calling

An in-browser copilot fills PDF form fields from data sources or user input, helps with foreign-language forms, and explains contract clauses before signing.

What They Did

The copilot runs inside a browser-based PDF editor and uses LLM tool calling to fill form fields. It can draw values from existing data sources such as a CRM or EHR through MCP/RAG, or from what the user types. Each change appears live in the editor, and the user can correct any field with one click. The LLM is bring-your-own, local or hosted.

How It Went

The source gives no metrics. The author says a commenter found a bug where mangled form labels sent to the LLM put values in wrong fields, and that it is now fixed.

Worth Knowing

Check that the form labels passed to the LLM are clean; mangled labels caused values to land in the wrong fields.