Choose the right workflow
Is this recurring PDF work?
PDF mail merge is for a repeatable business process: the same form, many spreadsheet rows, and one reviewed PDF per customer, vendor, employee, or case.
I fill the same PDF for multiple rows
Test the complete five-row workflow, including mapping, review, and ZIP export. No card or sales call.
Try the batch sampleSingle documentI only need to fill one PDF
Use the standard PDF filler. You do not need Excel import, batch review, or a recurring subscription.
Fill one PDF22-second walkthrough
One PDF. Five spreadsheet rows. One ZIP.
A real production workflow with a synthetic vendor form and a five-row Excel workbook: match all nine fields, review every PDF, and export one ZIP.
- 1Review nine PDF fields once
- 2Match 9/9 Excel headers
- 3Approve five and export ZIP
PDF mail merge, without Word
How to fill multiple PDF forms from Excel
Keep the original PDF layout. Put column names in the first spreadsheet row and one customer, employee, vendor, or case in each row below it. JustFill creates a separate PDF for every selected row.
- 1
Upload the original PDF
Use an AcroForm, a flat PDF, or a scan. JustFill detects the fields before the merge.
- 2
Import XLSX or CSV
Dates, leading zeros, percentages, booleans, and spreadsheet headers are preserved for mapping.
- 3
Check the column mapping
Matching headers map directly. Ambiguous columns can use AI-assisted mapping.
- 4
Review and export
Approve the records you want and download individual filled PDFs in one ZIP.
Sample input
One row becomes one PDF
| Name | Business name | Tax class |
|---|---|---|
| Alex Morgan | Northwind | LLC |
| Jordan Lee | Contoso | S Corp |
| Taylor Kim | Fabrikam | Individual |
Upload or send the source files
Upload the PDF you need to repeat. Fillable forms, flat PDFs, and scans are supported.
Map columns to PDF fields
Import CSV or XLSX. JustFill matches spreadsheet headers and row values to the detected PDF fields.
Review before export
Your team checks generated drafts before download, so the workflow saves time without skipping human review.
Where it fits
Built for recurring spreadsheet-to-PDF work.
JustFill is strongest when the source data already lives in Excel and the same PDF form needs to be prepared repeatedly for customers, vendors, employees, or internal operations.
Simple pricing
Use a $9 pack once—or subscribe only for recurring PDF batches.
Run the five-row sample first. One pack covers 5 clean PDFs and 25 AI credits without expiry. Starter, Pro, and Business add reusable monthly workflows for 25, 100, or 500 records.
Only need one clean job? Get 5 clean PDFs + 25 AI credits for $9 once. No subscription or expiry.
Starter
Recommended first workflow
- AI field detection for 60 new pages per month
- Reusable templates — refills use no detection pages
- Up to 25 PDFs per batch
- 125 clean output pages per month
- Clean, watermark-free ZIP exports
- CSV and XLSX imports
- Review every record before export
Paid workflow
For the next batch, reopen your saved work.
Keep the PDF and column mapping in your saved session. When the next spreadsheet is ready, reopen it from Recent Files and import the new rows. Monthly plans provide recurring clean-output and AI allowances for ongoing work.
Reopen the saved PDF
Open the same session from Recent Files to restore the PDF, field positions, and saved column mapping.
Import the next spreadsheet
Use the same column headers to reuse your mapping. Check any changed or missing columns before generating the new records.
Review and download the new batch
Review the new records, approve the ones you need, and download their PDFs in a ZIP. Your plan or pack allowance applies to each export.
Guardrails
Draft preparation with human review.
Clear boundaries
JustFill prepares PDF drafts from data your team provides. It does not validate business decisions, legal meaning, tax treatment, compliance status, or whether a form should be submitted.
Beyond manual uploads
Run the same PDF workflow from an AI agent or n8n.
The browser flow is the fastest way to validate a spreadsheet and PDF. Once the mapping works, the same JustFill account can expose PDF detection, filling, and saved templates through the hosted MCP endpoint.
Frequently asked questions
How do I mail merge a PDF from Excel?
Upload the PDF form once, import the Excel or CSV file, map each column to a detected PDF field, review the generated records, and download one completed PDF per selected row in a ZIP. The original PDF layout stays untouched.
Can I mail merge PDF documents without Adobe Acrobat?
Yes. Acrobat has no native spreadsheet mail merge, so a browser-based workflow is usually simpler than an Acrobat plug-in or script. Nothing needs to be installed and the form does not have to be rebuilt in Word.
Can a PDF form be filled from Excel data automatically?
Yes. Spreadsheet headers that match field names are mapped automatically, and ambiguous columns can be corrected by hand before generation. Automatic mapping never skips the review step: every generated record stays visible before export.
Can I mail merge a PDF from Google Sheets?
Yes. In Google Sheets, download the sheet as Microsoft Excel (.xlsx) or comma-separated values (.csv), then import that file into JustFill. Each selected spreadsheet row becomes one reviewable copy of the existing PDF; JustFill does not need access to your Google account.
Can I create a fillable PDF from Excel?
JustFill fills an existing PDF rather than converting a spreadsheet into a new fillable form. If the goal is one completed copy of a form per spreadsheet row — for customers, vendors, or employees — that is exactly what the batch workflow produces.
Does it work with scanned or flat PDFs?
Yes. JustFill detects field locations in fillable, flat, and scanned PDFs before mapping spreadsheet columns.
Does each spreadsheet row create a separate PDF?
Yes. The first row contains the Excel or CSV column names. Every selected data row becomes one reviewable PDF in the exported ZIP.
Is this the same as Word mail merge?
It uses the same one-row-per-document idea, but fills your existing PDF directly. You do not need to recreate the form in Word or convert the PDF first.
Can I review results before downloading?
Yes. Each spreadsheet row becomes a reviewable record. Approve the records you want before creating the ZIP.
Does JustFill email the generated PDFs?
Not in the current self-service batch. It creates individual PDFs and packages the approved files in a ZIP for download.
What happens to uploaded documents?
Transfers use TLS. Rendered page images are deleted within 7 days and source documents within 30 days unless you save the PDF as a reusable template.