pdf-form-filler

Fill out PDF forms programmatically and extract form data

INSTALLATION
npx skills add https://github.com/claude-office-skills/skills --skill pdf-form-filler
Run in your project or agent environment. Adjust flags if your CLI version differs.

SKILL.md

PDF Form Filler

Fill out PDF forms automatically and extract data from completed forms.

Overview

This skill helps you:

  • Fill PDF forms with provided data
  • Extract data from filled forms
  • Batch fill multiple forms
  • Validate form data
  • Create form-filling templates

How to Use

Fill a Form

"Fill this PDF form with the following data:

- Name: John Smith

- Date: 2026-01-29

- Amount: $1,500"

Extract Form Data

"Extract all form field values from this PDF"

"What data is filled in this form?"

Batch Fill

"Fill 50 copies of this form using data from the spreadsheet"

"Generate forms for each row in this CSV"

Form Field Types

Supported Fields

Field Type

Description

Fill Method

Text Field

Single/multi-line text

Direct text entry

Checkbox

Yes/No selection

Check/uncheck

Radio Button

One of many options

Select option

Dropdown

List selection

Choose value

Date Field

Date picker

Date value

Signature

Digital signature

Signature image/certificate

Combo Box

Dropdown with text entry

Select or type

Field Identification

## Form Fields: [Form Name]

### Field Map

| Field Name | Type | Required | Page | Notes |

|------------|------|----------|------|-------|

| applicant_name | Text | Yes | 1 | Max 50 chars |

| birth_date | Date | Yes | 1 | MM/DD/YYYY |

| gender | Radio | Yes | 1 | M/F/Other |

| employed | Checkbox | No | 1 | Check if yes |

| state | Dropdown | Yes | 2 | US states |

| signature | Signature | Yes | 3 | Digital sig |

Fill Templates

Data Mapping Template

## Form Fill Template: [Form Name]

### Form Info

- **File**: application_form.pdf

- **Total Fields**: 25

- **Required Fields**: 15

### Field Mappings

Personal Information

applicant_name: "${firstName} ${lastName}"

date_of_birth: "${birthDate}"

ssn_last_four: "${ssnLast4}"

phone: "${phone}"

email: "${email}"

Address

street_address: "${address.street}"

city: "${address.city}"

state: "${address.state}"

zip_code: "${address.zip}"

Employment

currently_employed: ${isEmployed} # checkbox

employer_name: "${employer.name}"

job_title: "${employer.title}"

Selections

payment_method: "${paymentMethod}" # dropdown

agree_terms: true # checkbox


### Sample Data

{

"firstName": "John",

"lastName": "Smith",

"birthDate": "1990-05-15",

"phone": "555-123-4567",

"email": "john.smith@email.com",

"address": {

"street": "123 Main St",

"city": "New York",

"state": "NY",

"zip": "10001"

},

"isEmployed": true,

"employer": {

"name": "Acme Corp",

"title": "Manager"

},

"paymentMethod": "Direct Deposit"

}

Output Formats

Fill Result Report


## Form Fill Result

### Summary

| Status | Value |

|--------|-------|

| **Form** | application_form.pdf |

| **Fields Filled** | 23/25 |

| **Errors** | 2 |

| **Output** | filled_application.pdf |

### Filled Fields

| Field | Value | Status |

|-------|-------|--------|

| applicant_name | John Smith | ✅ |

| date_of_birth | 05/15/1990 | ✅ |

| phone | 555-123-4567 | ✅ |

| state | NY | ✅ |

| payment_method | Direct Deposit | ✅ |

### Errors/Warnings

| Field | Issue | Suggestion |

|-------|-------|------------|

| ssn | Field not found | Check field name |

| signature | Requires certificate | Add signature manually |

### Validation

- ✅ All required fields filled

- ✅ Date formats correct

- ⚠️ Signature field needs manual completion

Extracted Data Report

## Form Data Extraction

### Source: completed_form.pdf

### Extracted Values

{

"form_title": "Employment Application",

"submission_date": "2026-01-29",

"fields": {

"applicant_name": "Jane Doe",

"date_of_birth": "1985-03-20",

"email": "jane.doe@email.com",

"phone": "555-987-6543",

"address": "456 Oak Ave, Chicago, IL 60601",

"position_applied": "Senior Developer",

"salary_expectation": "$120,000",

"available_start": "2026-03-01",

"references_provided": true

}

}


### Field Statistics

Metric
Value

Total fields
30

Filled fields
28

Empty fields
2

Extraction confidence
98%

Batch Processing

Batch Fill Job


## Batch Form Fill

### Configuration

- **Template Form**: w9_form.pdf

- **Data Source**: vendors.csv

- **Records**: 150

- **Output Folder**: /filled_w9s/

### Data Preview

| Row | Name | TIN | Address |

|-----|------|-----|---------|

| 1 | Acme Corp | XX-XXX1234 | 123 Main St |

| 2 | Beta LLC | XX-XXX5678 | 456 Oak Ave |

| ... | ... | ... | ... |

### Progress

| Status | Count | % |

|--------|-------|---|

| ✅ Completed | 145 | 97% |

| ⚠️ Warnings | 3 | 2% |

| ❌ Errors | 2 | 1% |

### Errors

| Row | Issue |

|-----|-------|

| 47 | Invalid TIN format |

| 89 | Missing required: Address |

### Output Files

- w9_acme_corp.pdf

- w9_beta_llc.pdf

- ...

Form Validation

Validation Rules

## Form Validation Rules

### Field Validations

| Field | Rule | Error Message |

|-------|------|---------------|

| email | Valid email format | "Invalid email address" |

| phone | 10 digits | "Phone must be 10 digits" |

| ssn | XXX-XX-XXXX format | "Invalid SSN format" |

| date | MM/DD/YYYY | "Use MM/DD/YYYY format" |

| zip | 5 or 9 digits | "Invalid ZIP code" |

| amount | Numeric, > 0 | "Enter positive number" |

### Cross-Field Validations

| Rule | Fields | Condition |

|------|--------|-----------|

| Conditional required | employer_name | Required if employed = true |

| Date range | end_date | Must be after start_date |

| Sum check | item_totals | Must equal grand_total |

Validation Report

## Pre-Fill Validation

### Data Validation Results

| Field | Value | Valid | Issue |

|-------|-------|-------|-------|

| email | john@email | ❌ | Missing domain |

| phone | 555-1234 | ❌ | Only 7 digits |

| date | 2026-01-29 | ✅ | - |

| zip | 10001 | ✅ | - |

### Summary

- ✅ Valid: 18 fields

- ❌ Invalid: 2 fields

- ⚠️ Warnings: 3 fields

### Recommendations

1. Fix email format: add domain (e.g., @company.com)

2. Complete phone number with area code

Common Form Types

Government Forms

Form

Purpose

Key Fields

W-9

Tax identification

TIN, name, address

I-9

Employment eligibility

ID info, citizenship

W-4

Withholding

Allowances, status

1099

Contractor income

Income, payer info

Business Forms

Form

Purpose

Key Fields

NDA

Confidentiality

Parties, terms, dates

Invoice

Billing

Items, amounts, terms

PO

Purchase order

Items, quantities, vendor

Application

Various

Personal info, history

Tool Recommendations

Desktop Software

  • Adobe Acrobat Pro: Full form features
  • Foxit PDF Editor: Good form support
  • PDFescape: Free online option
  • JotForm: Form creation and filling

Programming Libraries

  • pdf-lib (JavaScript): Fill and create forms
  • PyPDF2 (Python): Basic form filling
  • iText (Java/.NET): Enterprise forms
  • PDFBox (Java): Apache project

Automation Tools

  • Adobe Acrobat Actions: Batch processing
  • Power Automate: Microsoft integration
  • Zapier + PDF.co: Cloud automation

Limitations

  • Cannot execute actual form filling (provides guidance)
  • Digital signatures require proper certificates
  • Some secured PDFs prevent form filling
  • Complex calculations may not auto-update
  • Flattened forms cannot be edited
  • Field names must match exactly
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