@formepdf/core

WASM-powered PDF rendering engine for Forme.

Install

npm install @formepdf/react @formepdf/core

Usage

import { Document, Page, Text } from '@formepdf/react';
import { renderDocument } from '@formepdf/core';
import { writeFileSync } from 'fs';

const doc = (
  <Document>
    <Page size="Letter" margin={54}>
      <Text style={{ fontSize: 24 }}>Hello Forme</Text>
    </Page>
  </Document>
);

const pdfBytes = await renderDocument(doc);
writeFileSync('output.pdf', pdfBytes);

What this package does

This package contains the compiled WASM binary of Forme's Rust layout engine. It handles:

• Page-native layout with automatic content splitting
• Font loading, subsetting, and TrueType embedding
• PDF generation with links, bookmarks, images, and SVG
• Table layout with automatic header repetition

You write components with @formepdf/react. This package turns them into PDF bytes.

API

renderDocument(jsx)

Takes a JSX document tree and returns a Uint8Array of PDF bytes.

renderDocumentWithLayout(jsx)

Returns both the PDF bytes and layout metadata (element positions, sizes, page info). Used by the dev server for the element inspector.

Docs

Full documentation at docs.formepdf.com