@cristianexer/dongler

TypeScript bindings for Dongler, a fast Rust-native PDF and document extraction engine.

Dongler is designed around a simple workflow: load a document path, receive a document object, then render Markdown, LaTeX, or JSON from that object.

Status

The npm package calls the Rust core through a NAPI native addon. It supports the same native PDF and text extraction paths as the Rust and Python packages.

Install

npm install @cristianexer/dongler

PDF Workflow

Parse a PDF into Markdown, LaTeX, or JSON locally:

import { load } from "@cristianexer/dongler";

const doc = load("report.pdf");
const markdown = doc.toMarkdown();
const latex = doc.toLatex();
const data = doc.toObject();

PDF documents include page geometry, block source anchors, warnings, and image positions in doc.toObject() / doc.toJson().

Works Today

import { load } from "@cristianexer/dongler";

const doc = load("notes.txt");

console.log(doc.metadata.block_count);
console.log(doc.toMarkdown());
console.log(doc.toLatex());
console.log(doc.toJson());

Batch Processing

import { loadMany } from "@cristianexer/dongler";

const results = loadMany(["notes.txt", "invoice.pdf"]);

for (const result of results) {
  if (result.ok) {
    console.log(result.document!.toMarkdown());
  } else {
    console.error(`${result.path}: ${result.error}`);
  }
}

Compatibility API

The original text helpers remain available:

import { parseText, toLatex, toMarkdown } from "@cristianexer/dongler";

const doc = parseText("Hello from Dongler");
const markdown = toMarkdown("Hello from Dongler");
const latex = toLatex("Revenue is 100%");

License

Dongler is MIT licensed. Copyright (c) 2026 Daniel Fat. See LICENSE and NOTICE for the full notice text.