Free vs Pro
Free ships production documents. Pro adds the features production documents eventually need.
Every format has a free package (Apache-2.0) and a Pro package (proprietary). The free engines are not demos. Pro adds typography, compliance, repair, and format-specific capabilities that matter once documents become product infrastructure.
How it works
Separate packages. Same API shape.
Install the free package
npm install @paperjsx/json-to-pptx. Apache-2.0. No sign-up, no branding, no limits.
Upgrade to Pro when needed
npm install @paperjsx/json-to-pptx-pro. Set your PAPERJSX_LICENSE_KEY env var. Same API, more features.
License covers the whole team
Per-company, not per-seat. One key works across your entire organization.
By format
What each Pro package adds.
PPTX PowerPoint
@paperjsx/json-to-pptx@paperjsx/json-to-pptx-pro| Feature | Free | Pro |
|---|---|---|
| Layout engine | ||
| Line breaking | ||
| Chart types | ||
| Image output | ||
| Slide masters | ||
| RTL text (Arabic, Hebrew) | ||
| Animations | ||
| Morph transitions | ||
| .potx template import | ||
| SmartArt diagrams | ||
| Accessibility validation | ||
| Video embedding (YouTube, Vimeo) |
DOCX Word
@paperjsx/json-to-docx@paperjsx/json-to-docx-pro| Feature | Free | Pro |
|---|---|---|
| Document generation | ||
| Pagination engine | ||
| Font subsetting | ||
| Theme system | ||
| Native charts (PVCE) | ||
| HTML → DOCX | ||
| Batch parallel rendering | ||
| Compliance modules | ||
| Track changes / redline |
XLSX Excel
@paperjsx/json-to-xlsx@paperjsx/json-to-xlsx-pro| Feature | Free | Pro |
|---|---|---|
| Cell values and styling | ||
| Chart types | ||
| Formulas | ||
| Quality reporting | ||
| Template import | ||
| Repair pipeline |
PDF PDF
@paperjsx/json-to-pdf@paperjsx/json-to-pdf-pro| Feature | Free | Pro |
|---|---|---|
| Layout and rendering | ||
| Encryption | ||
| Typography | ||
| Dynamic headers/footers | ||
| Digital signatures | ||
| Streaming generation | ||
| Form filling (existing PDFs) | ||
| PDF/A-2a compliance | ||
| PDF repair |
Across all formats
What Pro means across the stack.
Advanced typography
HarfBuzz WASM for RTL scripts, CJK, ligatures, and complex text shaping in PPTX and PDF.
Document repair
Multi-strategy repair pipelines that validate and fix XLSX and PDF structure before delivery.
Compliance
PDF/A-2a archival, accessibility tags, digital signatures, and AES-256 encryption.
Template workflows
Import existing .potx and .xlsx templates. Parse, inspect, and assemble from real office files.
Pricing
Start free. One format from $79/mo. All four from $199/mo.
Free proves the workflow. Pro ships the features production documents eventually need. Per-company, not per-seat.