Reusable PDF Generation • PrefillPDF API

Generate PDFs from Templates

Use your existing document designs as reusable templates and generate personalized PDFs from structured data.

Updated·Jul 13, 2026

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Explore: API Docs · Use Cases · Pricing · Fill PDF Forms API

What you can do with PDF Template API

Use Your Design

Keep your current PDF layout and branding.

Map Once

Reuse the same field mapping for every document.

Dynamic Data

Generate personalized output from your application.

Consistent PDFs

Maintain the same approved format at scale.

API Controlled

Generate PDFs on demand from any workflow.

High Volume

Reuse templates for repeated document generation.

How it works

1
Upload your template
Use the PDF design your team already approved.
2
Map dynamic fields
Connect template fields to your application values.
3
Send document data
Call the API whenever a PDF is needed.
4
Receive the generated PDF
Download, email, store, or route the final file.

Common workflows

Invoices

Generate branded invoices from billing data.

Applications

Create completed application PDFs.

Contracts

Generate agreements with customer-specific terms.

Reports

Create recurring reports from live metrics.

Certificates

Generate personalized certificates at scale.

Purchase Orders

Create consistent supplier documents.

Benefits

Keep existing document designs

Generate personalized PDFs

Reduce manual document creation

Maintain consistent formatting

Connect generation to your app

Scale recurring workflows

Related PDF API features

Extract JSON from PDF API

Convert PDF documents into structured JSON that is easier to validate, analyze, store, and send into automated workflows.

Fill PDF Forms API

Automatically fill PDF form fields using your data, templates, and API-driven workflows.

PDF Form Field Extraction API

Detect and return available PDF form field names so developers can map data accurately before generating documents.

Extract Text from PDF API

Extract and clean readable text from PDF files for search, summaries, analysis, classification, and automated workflows.

FAQ

Can I use my existing PDF design?

Yes. Upload the PDF template your business already uses.

How often can I reuse a template?

A template can be reused whenever your application needs to generate another document.

Can each generated PDF contain different data?

Yes. Send unique values for each generation request.

Can I maintain multiple templates?

Yes. Use different templates for different document types, brands, or workflows.

Can templates be used with no-code tools?

Yes. Trigger template generation through supported automation workflows or HTTP requests.

Start using PDF Template API

Connect your PDF workflow to PrefillPDF and automate document processing from your application.