PDF generation API: REST endpoint, CSV batch, no-code templates
Paperless gives you a REST API for branded PDF generation - call it from your backend, your scheduled job or your Zapier scenario. Templates are designed visually by your team, not coded; documents render in under a second; batch runs handle 10,000+ PDFs at a time. No per-document fees on the free tier.
Why teams move to a real PDF API
- Generating PDFs server-side from HTML is fragile and slow at scale.
- Headless Chrome / Puppeteer breaks on every Chrome update.
- Word + mail merge can't be triggered from a backend job or webhook.
- Existing PDF SaaS APIs charge per document - costs spike with growth.
- Designers and developers can't agree on the same template format.
What Paperless ships
- REST API: POST your data, get a branded PDF back in <1s.
- Visual no-code editor designers and ops staff can use without help.
- CSV and Google Sheets batch generation - 10,000+ PDFs per run.
- Webhook on every generation event for reliable downstream automation.
- Versioned templates with audit logs and rollback.
Every document automation we ship runs on Paperless - our in-house engine, also available as a standalone product. Generate 10,000+ branded PDFs per month from CSV, Google Sheets or your REST API. Free to start.
- Visual no-code template editor your team can edit without a developer
- REST API for on-demand generation from any system
- CSV / Google Sheets batch generation - 10,000+ docs per run
- Multilingual output (EN / LT / PL / +) from a single template
- Free tier - no credit card required
Common questions
Is there a free tier?
+
Yes. Paperless has a generous free tier with no credit card required. You can start generating PDFs from the API in minutes.
How do I authenticate API calls?
+
Each workspace gets API keys you can rotate. We support per-template scoping so a leaked key only affects what it should.
What goes into the API call?
+
JSON: a template ID and a data object. Paperless merges your data into the template and returns the PDF (or a URL to it). Sub-second response on the free tier.
Can I generate PDFs in batch?
+
Yes - upload a CSV or point Paperless at a Google Sheet, get 10,000+ generated PDFs back in one run with progress webhooks.
Is Paperless self-hostable?
+
Yes - we offer self-hosted Paperless for enterprise clients with strict data residency requirements. Talk to us.
Related automation services
Bulk PDF generation
Generate thousands of branded PDFs at once - statements, invoices, certificates, reports - from CSV, Google Sheets or REST API. Paperless by Zeroflowers, free to start.
Learn morePDF from CSV / Google Sheets
Turn a CSV or Google Sheet into thousands of branded PDFs - statements, certificates, invoices, reports. Visual no-code template editor. Free tier, REST API.
Learn moreDocument automation
Automate generation of contracts, certificates, reports, proposals and statements from your data - at scale. REST API, CSV batches and a no-code template editor.
Learn more