AI-Powered Field Filling
Extract the right value from your source documents and place it in the right field — automatically, at the pace of a form per minute
Overview
AI-powered field filling solves the core problem of document-based paperwork: you have data in one place (a resume, a prior form, a medical record, a bank statement) and need to get it into another place (a new form with different field names, layouts, and format requirements). The AI reads both documents, figures out what maps to what, converts formats as needed, and fills the form — without you manually reading one document and typing into another.
The AI works from the form's complete field inventory — field names, labels, types, page numbers, maximum lengths, dropdown choices — and the source document's text, segmented to the pages most relevant to each section of the form. Related fields are filled in parallel groups rather than one at a time, which is why a 100-field mortgage application completes in about the same time as a 10-field cover sheet. Fields with dependencies (spousal information that only applies if "Married" is checked, sub-fields that activate only when a parent answer is "Yes") are handled with explicit conditional rules rather than by assuming all fields should be filled.
The result is a filled form where the human's job is reviewing and correcting the 2–5 fields the AI flagged as uncertain — not re-typing everything from scratch.
Key Capabilities
- Semantic field mapping: Matches "Applicant's Full Legal Name" on the form to a full name in the source document; handles mismatches between field labels and data labels without manual column mapping
- Three filling modes by field type: groups of related independent fields fill concurrently; individual fields with stored correction examples fill with few-shot context; table rows (employment history, medications, assets) fill through dedicated row-extraction logic
- Conditional field handling: dependency rules ("fill [Spouse SSN] only if [Marital Status] is 'Married'") are resolved before filling begins, so the AI doesn't populate fields that should be blank
- Text overflow management: when a generated value exceeds a field's maximum character length, the AI reformulates it to fit based on the field's pixel dimensions and font size — no hard mid-sentence truncation
- Format conversion: dates (written month → MM/DD/YYYY), phone numbers (any format → (XXX) XXX-XXXX), names (full → split first/last), address abbreviations, checkbox values (yes/no/true/false → checked/unchecked)
- Multi-source synthesis: pulls from multiple uploaded documents simultaneously — SSN from one file, employer address from another, prior-year tax amounts from a third
- Confidence score per field: every filled value is scored; fields below the confidence threshold surface in the review interface so users can focus their checking on the uncertain ones
- Few-shot examples from corrections: fields that have been corrected previously carry stored examples that bias the AI toward the correct format for that specific form going forward
How It Works
1. Field Inventory and Source Segmentation
The form's complete field list is loaded: every field's name, label, type (Text, ComboBox, Date, Number, CheckBox, RadioButton), page number, maximum length, and available choices. Pre-filled static fields are identified and excluded. Source document content is then mapped to specific form pages — so the AI filling page 3 of a 10-page form only receives source text relevant to page 3. This prevents cross-page confusion on long multi-section documents.
2. Dependency Resolution
Before any field is filled, dependency chains are computed across the form's fields. Fields that depend on each other are grouped, and conditional rules are formatted as explicit instructions appended to the fill prompt: "Fill [Spouse DOB] only if [Marital Status] equals 'Married'." This eliminates a common class of errors — filling in sub-fields that should remain blank based on a prior answer.
3. Parallel Group Filling
Independent field groups — groups with no shared dependencies — are dispatched concurrently, up to 40 simultaneous fill tasks for a single form. A 100-field form isn't filled field-by-field sequentially; independent sections fill at the same time, completing in a fraction of the sequential time. Each group receives the page-scoped source text plus the dependency rules relevant to that group. Fields with stored correction examples receive those examples as additional context.
4. Table and List Extraction
For repeating field structures — employment history, medication lists, prior address history, asset schedules — a dedicated extraction pass pulls structured rows from the source before placing them into the form. The AI identifies how many data entries exist in the source (3 prior jobs, 5 current medications), maps them to the available form rows, and fills in the order the form expects (typically most recent first for employment, chronological for address history).
5. Text Overflow Resolution
After filling, any value that exceeds the field's maximum character length goes through a reformulation pass. The AI estimates the maximum characters that fit given the field's pixel width and font size, then summarizes or reformulates until the value fits — without truncating mid-word or mid-sentence.
6. Confidence Scoring and Review Handoff
Each filled field receives a confidence score. Fields below the threshold are highlighted in the visual editor so reviewers know exactly which fields to check. On a well-matched source document, most reviews take under 60 seconds — check the flagged fields, correct the 1–3 that need adjustment, download the PDF.
Use Cases
Form automation powered by AI field filling addresses the manual-transfer bottleneck in document-heavy workflows:
Healthcare billing: Extract CPT codes, diagnosis codes, patient identifiers, and provider NPI numbers from clinical notes and explanation-of-benefit documents to fill CMS-1500 and UB-04 claim forms.
Mortgage processing: Pull borrower income, employment history, asset amounts, and liability balances from W-2s, bank statements, and pay stubs to populate 1003 loan applications with 200+ fields.
Legal: Combine client intake questionnaires, prior filings, and engagement letters to fill court pleadings, disclosure statements, and compliance certifications — with each party's information staying in the correct section.
HR onboarding: Transfer new hire data from onboarding packets to benefit enrollment forms — W-4, FSA election, COBRA notice, 401(k) deferral — without re-keying the same name, address, and SSN into eight different forms.
Immigration: Extract passport details, employment history, address history, and family information from client files to fill I-130, I-485, DS-260, and similar multi-section government applications.
Insurance: Fill first notice of loss forms, adjuster worksheets, and claims supplements from policyholder statements, incident reports, and coverage documentation.
Benefits
- Forms completed in 25–60 seconds instead of 10–30 minutes per form: a team processing 50 applications per day eliminates most of the manual entry, freeing staff to review rather than type
- Parallel group filling means processing time doesn't scale linearly with field count — a 200-field form takes roughly the same time as a 30-field form for the AI
- Conditional logic prevents a common submission error class: fields that should stay blank (because a prior answer was "No") no longer get accidentally populated
- Text overflow handling means long legal descriptions, full addresses, and detailed job duties don't get hard-cut at an arbitrary character limit
- Confidence flags make the review step faster: instead of checking every field, reviewers check the 2–5 that the AI flagged as uncertain
- Format conversion eliminates the lookup-and-reformat step: dates, phone numbers, names, and addresses come out in whatever format the form requires
Security & Privacy
Source document content is encrypted before storage using workspace-scoped encryption keys managed through Azure Key Vault. Text from source documents is processed within the session context and never used to train AI models. Each session is isolated — content from one organization's documents cannot be accessed or inferred in another session. The audit trail records which source files were provided and which fields they populated, giving compliance teams a complete data-lineage record for regulated submissions (HIPAA authorizations, IRS forms, insurance filings). All data is scoped to workspaceId and protected via JWT authentication middleware.
Common Questions
How does AI handle ambiguous or conflicting information?
The AI encounters several types of ambiguity on real-world documents:
Multiple values available:
- Form asks: "Phone Number"
- Source contains: home (555-1234), mobile (555-5678), work (555-9012)
- AI selects the mobile number (most common expectation for a generic "Phone Number" field) and assigns medium confidence, surfacing it for review
Conflicting values across sources:
- Resume says employment ended "December 2023"; LinkedIn profile says "January 2024"
- AI uses the most recently uploaded source and flags medium confidence with a note that values differ
Missing information:
- Form requires "Middle Name"; source only provides "John Smith"
- AI leaves the field blank rather than guessing. Low confidence flag requests manual entry.
Inference-based fills:
- Form asks "Years of Experience in Field"
- Source lists employment from 2017–2024
- AI calculates 7 years and assigns high confidence (calculation, not interpretation)
The AI prioritizes accuracy over completion rate — a blank field that the user can fill in is better than a confidently wrong value that gets submitted to a government agency or insurer.
What happens if AI fills a field incorrectly?
Corrections are made directly in the form filling session:
- Click on the incorrectly filled field in the visual editor
- Type the correct value
- The correction is saved to the session
Beyond the immediate fix, corrections contribute to the form's example library. After a field is corrected, the corrected value is stored as an example for that field ({value, added_at}). On future fills of the same form, the AI receives these examples as additional context and biases its output toward the correct format — useful when a form has unusual field naming conventions or non-standard date formats.
If a fill consistently produces wrong values for a specific field type, the form can be submitted for AI fine-tuning, which processes the filled examples to adjust how the AI approaches those fields.
Can the AI handle source documents in different languages?
Yes. The AI reads source documents in 100+ languages and maps their content to form fields. This is particularly useful when:
- A German bank statement needs to fill a US mortgage application
- A Japanese passport needs to fill a visa application form
The AI detects the source language automatically, extracts the data, and places it in the form in the form's language. Language-specific formatting differences are handled automatically — name ordering conventions (surname-first in many Asian documents vs. given-name-first in Western documents), date format variations (DD/MM/YYYY vs. MM/DD/YYYY), and address structure differences.
Accuracy is highest for English-language sources. For non-Latin scripts (Arabic, Chinese, Japanese, Korean), accuracy depends on the quality of the original document scan and may require manual review of more fields.
How does the AI fill employment history tables?
Forms with employment history tables (typically: Employer, Job Title, Start Date, End Date, Reason for Leaving) require the AI to extract structured data from the source — a resume narrative, a prior application, or freeform text — and map it row-by-row into the table.
The process:
- A dedicated extraction pass reads the source for employment entries, identifying section boundaries ("Experience", "Work History", employer names, date ranges)
- Each entry is structured: employer name, job title, start date, end date, any description
- Entries are sorted chronologically (most recent first, typically)
- Table rows are filled sequentially: row 1 = most recent employer, row 2 = prior, etc.
- Long job descriptions are summarized if they exceed the field's maximum character limit
The same logic applies to other repeating structures: medication lists on medical intake forms, prior address history on background check applications, asset schedules on financial disclosure forms, dependent information on benefits enrollment forms.
If the source has more entries than the form has rows, the AI fills available rows and notes that additional entries exist. If the source has fewer entries than rows, the remaining rows stay blank.
What do confidence scores mean in practice?
Confidence scores reflect how certain the AI is that the value it filled is correct. In the review interface, fields below the confidence threshold are highlighted for review.
High confidence: Exact or near-exact match found in the source — the full name on the form matched the header of the resume. These fields are almost always correct and rarely need checking.
Medium confidence: The AI made an inference or had to choose among alternatives — selecting one of three phone numbers, inferring a city from a partial address, calculating a value from dates. These fields are usually correct but worth a quick glance before submission.
Low confidence: The AI couldn't find a clear source for the value, made a significant inference, or the source data was ambiguous. These fields are flagged prominently and should be reviewed before submitting.
Blank / not filled: The AI determined the field requires information not present in any source document. Manual entry required.
On a well-matched source document (a completed prior application being used to fill a similar new form), most fields will be high confidence and only 2–5 fields will need review.