Using Puppeteer to make PDFs is one of the most common patterns in Node, and for good reason: you already know HTML, Chrome already renders it, and printing to PDF is one call. Polotno SDK is a design editor you embed, with a renderer that turns its JSON designs into PDFs. The question that decides it: does the HTML exist for its own sake, or only so a browser can turn it into a document? In the second case, you are maintaining a layout language, a rendering engine, and a browser pool to produce something a design schema would render directly.
Pick the one that matches what you are rendering
Pick Puppeteer if…
- You are capturing a real web page. Archiving a live URL, snapshotting a dashboard, printing something that exists as a page. That is what a browser is for.
- Your document is flowing, text-heavy content. Long reports where content pushes across page breaks are what CSS pagination handles well.
- The HTML already exists and is maintained anyway. Reusing a page you ship regardless is a real saving.
- You want no license cost. The library is free; operating it at volume still costs you.
Pick Polotno SDK if…
- The HTML exists only to become a PDF. That is the tell. You are using a browser as a layout engine for a document nobody browses.
- Someone non-technical should own the layout. Editing a design beats editing a template with print media queries.
- Output is positional. Certificates, tickets, labels, badges, and packaging are designed to fixed coordinates, and CSS fights that.
- You need print output. Chrome emits RGB. CMYK, spot colors, bleed, crop marks, PDF/X-4, and PDF/X-1a come out of PDF export directly.
- You do not want to run a browser fleet. Zombie processes and version pinning are the ongoing cost of this pattern. Vector PDF export needs no browser, and the Cloud Render API runs the rest for you.
A layout engine you rent vs one you skip
1. What you maintain
Puppeteer means maintaining HTML and CSS, print stylesheets, a Chrome version, and a pool of browser processes. Polotno means maintaining a JSON design. When rendering is incidental to your product and you export vector PDF or use Cloud Render, the second is a lot less to own.
2. Determinism
Page breaks land where the engine decides. Each Puppeteer release pairs with a specific browser, so upgrades are yours to schedule and yours to test. A schema with explicit coordinates does not depend on a page-break engine, so layout holds steady. Vector PDF text can still differ a little from the canvas in font shaping and effects.
3. Print color
This is the hard stop for print work. Chrome prints RGB, and we found no CMYK, spot color, or bleed option in Puppeteer's PDF docs. If your PDFs go to a commercial printer, Puppeteer cannot get you there without a separate conversion step.
4. Cost at volume
Puppeteer's license is free and its operation is not. One browser can host many pages, and you still size and run those browsers yourself. Polotno charges a fixed license fee with no per-render fee on self-hosted rendering, and raster and video exports still need a browser on your server. The optional Cloud Render API is billed per use, with no fleet to run. Which is cheaper depends on volume and on what your engineering time is worth.
Feature comparison
| Capability | Polotno SDK | Puppeteer |
|---|---|---|
| Input | JSON design | Any web page, HTML and CSS, live URLs |
| Full CSS and JavaScript | No | Yes, through a real browser |
| Flowing multi-page text | Fixed positions on each page | CSS pagination |
| Who edits the layout | Non-developers, in an embedded editor | A developer, in HTML and CSS |
| Output | PNG, JPEG, PDF, PPTX, GIF, MP4, plus SVG and HTML outside Cloud Render | PDF and screenshots |
| Tagged PDF and outlines | Not documented | Yes, both marked experimental |
| Print output | CMYK, spot colors, bleed, crop marks, PDF/X-4, PDF/X-1a | RGB, with no CMYK or PDF/X in its docs |
| Browser on your server | Not for vector PDF, yes for raster and video | Yes |
| License | Commercial, fixed license fee by custom quote, no per-render fee when self-hosted, Cloud Render billed per use | Apache-2.0, free |
When Puppeteer is the right call
Capturing pages that exist on the web, or producing long flowing documents from HTML you already maintain. Both are good reasons and neither is a workaround.
The pattern worth questioning is a third one: hand-writing HTML with print media queries, whose only purpose is to be printed to PDF. That is the case where the browser is a detour.
If your documents start as designs, evaluate Polotno with the 30-day free trial, no credit card needed.
FAQ
Can Polotno render HTML to PDF?
No. Polotno renders from its own JSON schema, not from arbitrary HTML. It converts the other way, PDF to HTML, via the PDF to HTML tool. If your input must be HTML, Puppeteer or a dedicated HTML-to-PDF service is the right tool.
Can I keep Puppeteer and add Polotno?
Yes. Puppeteer for page capture, Polotno for the designed documents users author.
What about wkhtmltopdf or WeasyPrint?
Both turn HTML into PDF, and they differ from Puppeteer. wkhtmltopdf has been archived since January 2023. WeasyPrint runs without a browser, and its docs cover CMYK colors, bleed, print marks, and PDF/X variants, so try it first if your input is HTML and your output goes to a printer.
