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AI-Powered Document Automation

Fill PDF forms
up to 10x faster

The AI app for filling out PDF forms that other software can't open — scanned, flattened, non-fillable. JustFill's AI actually "sees" the fields (checkboxes, tables, dotted lines) on any PDF, so you type, fill and reuse the same form in seconds. No Adobe.

Need one PDF per spreadsheet row? See the Excel → PDF workflow

Upload your form

Choose a PDF, a Word file or an image from your files, or photograph a paper form.

PDF, Word (.docx, .doc), JPG, PNG, WebP, HEIC, GIF and BMP. Instant field preview in browser, no credit card required.

Unlimited filling, editing, and watermarked PDF preview downloads are free. Need clean, watermark-free exports or AI Auto-Fill? Grab the $7 7-Day Pass (25 clean flat PDF pages + 25 AI credits, $7 credited toward $19/mo Starter).

By uploading, you confirm you have the legal right to use this document.

No PDF on your device? Try in 1 click with an official sample:
See it in action
GDPR CompliantEdit Every Field Before DownloadVoice Dictation in 5 Languages
> detecting_fields...
> found: "First Name" (conf: 0.99)
> found: "Tax ID" (conf: 0.98)
> mapping_data... success
> generating_pdf...
medical_intake_form.pdf
Patient Name
Alexander Hamilton
Date of Birth
12/05/1985
Blood Type
O Negative
Insurance Provider
Example Health Co.
Policy Number
XX-99887766
Medical History Summary
Patient exhibits no known allergies. History of mild hypertension. Regular exercise routine maintained.
6 fields detected
Handles tables, checkboxes & dotted lines
Save a template, re-fill in seconds
Dictate data by voice in 5 languages
GDPR Compliant

PDFs were designed for printing,
not for data entry.

Existing tools treat PDFs as flat images. You're still stuck doing the heavy lifting, field by field, document by document.

Fragmented Layouts

Every government agency and insurance provider uses a different layout. Static templates break the moment a line moves.

Structural Blindness

Standard fillers don't see checkbox grids, tables, or dotted lines. They leave you to "draw" boxes manually every single time.

Zero Error Recovery

One typo in a flat PDF usually means starting over. No undo, no re-flow, no way to update data across multiple pages.

The JustFill Way

AI that actually
understands documents.

JustFill doesn't just overlay text. It maps your data to the logical structure of the form, handling complex elements like tables and nested checkboxes automatically.

Visual Field Mapping
Table & Grid Detection
Multi-page Consistency
Reusable Layout Logic
Mapping
Example layout

Detect every field.
Fill with precision.

Not just text boxes. We detect labels, table cells, checkbox groups, dotted fill lines, and tick marks — then let you verify every field before filling.

AI-Powered Field Detection

Our AI analyzes the full structure of your form — not just text boxes. It detects field labels, table cells, checkbox groups, dotted fill lines, and tick marks. Then it maps your data to each field based on context.

Secure & Private

Your documents are processed securely with encrypted connections. GDPR compliant with full data export and deletion rights.

Handles Complex Forms

Multi-page tax returns with nested tables. Insurance applications with checkbox grids. Government forms with dotted fill lines and tick marks.

Detect Once, Fill Forever

Save detected field positions as a template. Next time you upload the same form layout, it's recognized automatically — AI maps your new data to saved positions in seconds. Set up once, re-use for every new document.

Full Control Editor

Draw new fields, drag to reposition, resize with snap alignment. Multi-select, undo/redo, zoom and pan. Your adjustments are saved with the template.

Multi-Page Processing

Upload a multi-page form. Each page analyzed independently. Section headers detected, so fields from page 1 don't confuse fields on page 3.

From blank PDF to filled document
in four simple steps.

1

Upload Your PDF

Upload any PDF form — government documents, insurance claims, tax returns, customs declarations. Multi-page forms processed section by section.

2

AI Detects Every Field

Our AI analyzes the full document structure: field labels, input areas, table cells, checkbox groups, dotted fill lines.

3

Review & Fine-Tune

Every detected field appears on an interactive canvas. Drag to reposition, draw new fields, resize with snap-to-grid precision. Full control before filling.

4

Fill & Download

Paste or dictate your data by voice — names, addresses, IDs, dates. AI maps each piece to the right field. Review and adjust on the interactive canvas, then download the filled PDF.

PDF mail merge from Excel or CSV

Fill one existing PDF for every spreadsheet row.

Keep the original PDF layout. Import XLSX or CSV, match columns to reviewed fields, preview every record, and download the approved PDFs together as a ZIP.

  • Fillable, flat, and scanned PDFs
  • One PDF per selected row
  • Review before clean export
  • Five-row sample—no card or call
See the five-row workflow Read the mail merge guide

See a PDF mail merge example with downloadable Excel, PDF, and output files before trying your own documents.

Template

vendor-form.pdf

5 spreadsheet rows
vendor-01.pdf
vendor-02.pdf
vendor-03.pdf
Download approved ZIP

See JustFill in action

Watch the full workflow — from uploading a blank PDF to downloading the filled document — in under 60 seconds.

How much time do your forms take?

Estimate your current manual work, then compare it with a trial on your own PDF.

$30/h
$10$200

Estimated time spent filling by hand:

41.7 hoursper month

$1,250 in manual work

This is your manual-work baseline, not a promise of savings. Setup and review take time too. The right plan depends on monthly output pages, new form layouts and records per batch.

Compare plans and limits

Built for repetitive paperwork

Detect the layout once with AI, save it as a template, then re-fill the same form type with new data in seconds.

Logistics

CMR, Bill of Lading, Customs Declarations. Fill consignee, shipper, and cargo details across multi-page documents.

Tax & Finance

Loan Applications, KYC Forms, Tax Returns. Handle complex tables with nested rows and dotted fill lines.

Insurance

Claims processing, insurance forms, policy applications. Checkbox grids, tick marks, and conditional sections detected automatically.

Healthcare

Patient intake forms, consent documents, medical history sheets. Fill repetitive patient data across multiple forms.

Government

Permits, regulatory filings, license applications. Handle government-specific layouts with section headers and reference numbers.

HR & Onboarding

Employee onboarding packets, benefit enrollment, W-4 and I-9 forms. Fill the same forms for every new hire in seconds.

100% Free · No Upload · Browser-Based

Free PDF Tools included with every account

Search, merge, annotate, split, and inspect PDFs entirely in your browser. Utility tools run without an account; form filling is free after signup.

PDF Word Search

Free

Find any word or phrase inside a PDF with all matches highlighted instantly.

Open tool

PDF Metadata Viewer

Free

View title, author, creation date, page count, and file size of any PDF.

Open tool

PDF Combiner

Free

Merge multiple PDFs into one document. Drag to reorder, then download.

Open tool

PDF Annotator

Free

Add highlights and text notes to any PDF. Choose colors and download.

Open tool

PDF Splitter

Free

Extract specific pages from a PDF with visual preview and download.

Open tool

PDF Form Filler

Free

Fill any PDF form — scanned, flat, or AcroForm. Draw fields or use AI detection.

Open tool
View all free PDF tools

Popular Fillable PDF Workflows & Guides

Make Any PDF Fillable FreeFill PDF OnlineConvert Word to Fillable PDFHow to Make a PDF Fillable GuideBest Fillable PDF CreatorspdfFiller AlternativeMake PDF Fillable Without AdobeJotform & DocuSign Alternative
Popular Forms

Fill the forms you fill most step-by-step guides for common government forms

Dedicated guides with AI-assisted filling for the US, UK, and Indian government forms our users complete most often. Filling, editing, and watermarked preview downloads are free.

IRSFree

Form W-9

Request for Taxpayer Identification Number

Fill Form W-9
USCISFree

Form I-9

Employment Eligibility Verification

Fill Form I-9
IRSFree

Form 2848

Power of Attorney for tax matters

Fill Form 2848
USCISFree

Form I-129

Petition for Nonimmigrant Worker (H-1B, L-1)

Fill Form I-129
HMRC UKFree

Form SC2

Employee's Statement of Sickness for SSP

Fill Form SC2
EPFO IndiaFree

EPF Form 10D

Monthly pension claim under EPS 1995

Fill EPF Form 10D
Browse all supported forms

Transparent Pricing

Pick the plan that fits your workflow.

Free

Try JustFill with watermarked preview downloads

$0

Fill, edit & download watermarked previews free — 15 AI detection pages/mo (up to 5 pages/PDF).

  • AI field detection — up to 15 pages/month (up to 5 pages/PDF)
  • 10 one-time AI credits at signup & 1 free test Share link
  • Unlimited watermarked PDF preview downloads
  • Clean downloads from $7 (7-Day Pass) or $19/mo (Starter)
Most Popular

Starter

Clean downloads, interactive AcroForm PDFs, templates & 25-row batch fill

$19.00/mo
  • AI field detection for up to 250 new pages/month
  • No watermarks — 150 clean output pages/month
  • Interactive fillable PDF export (AcroForm)
  • Saved templates (25) & hosted Share & E-Sign links (5)
  • Batch fill from Excel/CSV — up to 25 records per export
  • 250 credits/month for AI helpers

Pro

High-volume teams, interactive AcroForm PDFs, Packets & API

$49.00/mo
  • Everything in Starter
  • Interactive fillable PDF export (AcroForm)
  • AI field detection for up to 1000 new pages/month
  • 400 clean output pages/month
  • Saved templates (100) · Share links (25) · Form Packets & REST API
  • Batch fill up to 100 records per export
  • 800 credits/month for AI helpers

Business

High-volume automation, 500-row batch & 100 Share Links

$99.00/mo
  • Everything in Pro
  • Interactive fillable PDF export (AcroForm)
  • AI field detection for up to 3000 new pages/month
  • 3000 clean output pages/month
  • Saved templates (200) · Share links (100) · Form Packets (100) & REST API
  • Batch fill up to 500 records per workflow
  • 2000 credits/month for AI helpers
Pay as you go — 25 clean flat PDF pages (valid for 7 days) + 25 AI credits. Up to 15 pages/PDF, 50 AI detection pages · full $7 credited toward Starter. No subscription — buy only when you need them.

Frequently Asked
Questions

Direct Access

Let's talk about
your workflow.

Have a question about AI credits, custom templates, or enterprise features? Our team is here to help you automate your paperwork.

New Inquiry / Contact Form
Typically replies within 24h

Start with what you need to do

Every one of these runs on the same editor — pick the one that matches the document in front of you.

Make any PDF fillable

Turn a flat, scanned or exported PDF into a fillable form — draw the fields once, or let AI detect them.

Convert a PDF to a fillable form

Keep the original layout and get real, clickable form fields back out the other side.

Make Fillable PDF from Word

Upload the .docx, we convert it to a PDF and detect the blanks you drew, then export real form fields.

How to create a fillable PDF document

Step by step for Acrobat, Word, Google Docs, Mac and a browser tool, with a tested example and what each one costs.

Fill a PDF form online

Type straight onto any PDF in the browser. No Adobe or install; preview and watermarked downloads are free.

Free PDF filler — no account required

Upload a form and preview its fields before paying. Watermarked preview downloads are free, and no credit card is required.

Adobe Fill & Sign alternative

Adobe retired Fill & Sign. This is the free browser replacement for the same job.

Fill PDF forms from Excel or CSV in batch

Map spreadsheet columns to any PDF form and generate hundreds of filled PDFs in one ZIP.

PDF Mail Merge Software

Populate any PDF form from Excel (.xlsx) or CSV rows in your browser — no Acrobat plug-ins or Word VBA macros.

CSV to PDF Filler

Upload a CSV and a PDF form to auto-fill one PDF or batch-generate hundreds of PDFs.

ChatGPT & Claude PDF MCP

Connect Claude Desktop, Cursor, or ChatGPT to JustFill MCP to inspect and fill PDFs with AI.

Stop filling forms by hand.

Upload a PDF, draw or detect fields, and fill by hand or by voice for free. Watermarked preview downloads and 15 AI detection pages/month (up to 5 pages/PDF) are included with no credit card needed.

GDPR compliant. No credit card required.