COMPARISON · PDFRELAY VS DOCRAPTOR · 2026-07-13
DocRaptor alternative: PDFRelay vs DocRaptor (2026)
DocRaptor is built on the Prince XML engine — a deliberate choice that brings professional print features (advanced page boxes, PDF/A, PDF/UA) but diverges from how browsers render. Prince does not support CSS Grid, and modern CSS often needs Prince-specific adjustments.
PDFRelay renders with Chromium: what Chrome prints is what you get. If your templates are ordinary modern web markup, they work unchanged.
Feature by feature
| Feature | PDFRelay | DocRaptor |
|---|---|---|
| Rendering engine | Chromium (browser-exact) | Prince XML |
| CSS Grid | Full support | Not supported |
| Modern JS in templates | Full Chromium JS | ES5-only JavaScript |
| PDF/A & PDF/UA output | Not yet (roadmap) | Yes — a genuine strength |
| Compliance posture | Transient processing, no stored PII | SOC 2, HIPAA options |
| Entry price | $12/mo — 1,500 docs | $15/mo — 125 docs |
| Free tier | 150 docs/mo | 5 test docs |
Pricing
| Tier | PDFRelay | DocRaptor |
|---|---|---|
| Free | Free — 150 docs/mo, no card | 5 test documents |
| Entry | $12/mo — 1,500 docs | $15/mo — 125 docs (Basic) |
| Mid | $29/mo — 5,000 docs | $75/mo — 1,250 docs (Premium) |
| Upper | $79/mo — 20,000 docs | $149/mo — 5,000 docs (Max) |
Where DocRaptor shines — and where it hurts
STRENGTHS · DOCRAPTOR
- Prince engine excels at archival-grade output: PDF/A, PDF/UA accessibility tagging
- Strong compliance posture — SOC 2, HIPAA options, 99.99% uptime record
- Sophisticated print-specific CSS (page boxes, footnotes, cross-references)
TRADE-OFFS · DOCRAPTOR
- No CSS Grid and ES5-only JS — modern templates often need rework
- Output diverges from browser rendering, so designs need Prince-specific testing
- Higher price per document at every tier; free tier is 5 documents
Frequently asked
When should I pick DocRaptor over PDFRelay?
Pick DocRaptor when you need compliance-grade archival PDFs — PDF/A for long-term storage, PDF/UA accessibility tagging, or HIPAA-covered workflows. Those are real Prince-engine strengths PDFRelay doesn't offer yet.
Will my existing web templates work on PDFRelay?
If they render in Chrome, yes — PDFRelay is Chromium, so CSS Grid, flexbox, custom properties, and modern JavaScript all work unchanged. On DocRaptor's Prince engine, Grid-based layouts need to be rewritten.
How do the prices actually compare?
PDFRelay's $12/month includes 1,500 documents; DocRaptor's $15/month includes 125. At the mid tiers, PDFRelay's $29 covers 5,000 documents while DocRaptor's $75 covers 1,250. DocRaptor's premium is the Prince engine and compliance features, not volume.
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See your own markup rendered
Paste your template into the free playground and render a proof in seconds — the exact engine the API uses.
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