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LightPDF Editor Web SDK

PDF editor SDK 

The LightPDF Editor SDK offers a complete set of PDF components — creation, viewing, annotation, editing and signing — built for teams developing or integrating software on the web. A comprehensive, customizable PDF SDK solution for developers and enterprises.

Runs in the browser
No backend conversion
On-prem available
GDPR & SOC 2 ready
LightPDF Editor Web SDK

Trusted by 10,000+ companies and developer teams

Deployment

On-premise

Run the full stack inside your own data center or private cloud. Java and .NET SDKs across Linux, Windows and macOS — built for finance, government and any regulated workload.

Offline SDK

Embed viewing, annotation, editing, signing and conversion as offline packages inside your desktop or web app. Process sensitive documents without ever leaving the device.

Cloud API / Low-code

Ship document parsing, conversion and intelligent workflows in minutes through a high-performance API and low-code builder — no backend rewrite required.

Explore the API

LightPDF SDK Features

From viewing and editing to collaboration and signing — one SDK covers the entire PDF lifecycle.

See all capabilities

Editing and viewing

Bring your users secure, scalable and high-fidelity viewing and precision editing for PDF and other electronic documents — consistent across web, mobile and desktop.

Annotation and collaboration

Empower users with real-time markup, comments, measurements and custom annotations. Wire in approval logic and statuses for a closed-loop review workflow.

Signing

Build custom signing workflows: place signature fields, assign signers, collect signatures and certify, validate and seal digitally signed documents.

Manipulating pages

Insert, remove, rotate and rearrange pages — assemble, merge or split documents directly in the browser, with multi-document side-by-side viewing.

Form fill, edit and create

Users fill, edit or build new forms themselves, or pre-populate fields from any source.

True redaction

Permanently remove sensitive information while keeping documents searchable — perfect for PII, PHI and other regulated content.

Generating templates

Generate documents by populating PDF, DOCX, PPTX, XLSX or HTML templates with data straight from your existing data storage.

Measurement tools

Define a document's scale and measure distance, area and perimeter with snap-to control points for engineering-grade precision.

PDF/A library

Convert PDFs and other formats into ISO-compliant PDF/A documents with multiple compliance levels and VeraPDF validation.
Developer first

Up and running in minutes

Works with JavaScript, TypeScript, React, Vue and Angular. Ship via npm or CDN.

  • TypeScript
  • React / Vue / Angular
  • SSR friendly

LightPDF PDF Editor

1<input id="pdf-file" type="file" accept="application/pdf" />2<iframe3  id="pdf-editor-frame"4  src="https://online-pdf-editor.aoscdn.com/"5  allow="clipboard-read; clipboard-write; local-fonts"6></iframe>7 8<script>9  const editorFrame = document.getElementById("pdf-editor-frame");10  const editorOrigin = "https://online-pdf-editor.aoscdn.com";11  const apiKey = "YOUR_API_KEY";12  let editorReady = false;13  let pendingFile = null;14 15  function openPdf(file) {16    if (!editorReady) {17      pendingFile = file;18      return;19    }20 21    editorFrame.contentWindow.postMessage(22      { type: "pdf-sdk:openPdf", file, api_key: apiKey },23      editorOrigin,24    );25  }26 27  window.addEventListener("message", (event) => {28    if (event.origin !== editorOrigin) return;29    if (event.data?.type === "pdf-sdk:loadComplete") {30      editorReady = true;31      if (pendingFile) openPdf(pendingFile);32    }33  });34 35  document.getElementById("pdf-file").addEventListener("change", (event) => {36    const file = event.target.files?.[0];37    if (file) openPdf(file);38  });39</script>
PDF Industry Solutions

Built for every industry

From finance, government, education and healthcare to manufacturing, construction and SaaS — the LightPDF SDK plugs into your stack to streamline document workflows, signing and archival.

Finance & Banking

Hot

End-to-end processing for loan files, statements and audit packs — batch merge, sign, encrypt and archive sensitive documents with full traceability.

Legal & Government

Annotate, compare versions and digitally sign contracts, case files and policy documents — with permissions and watermarks to keep confidential content safe.

Education & Training

Embed course viewers, in-class annotation and assignment forms — students read, answer and submit entirely inside the browser.

Healthcare

New

Truly redact and structurally extract prescriptions, lab reports and consent forms — balancing privacy compliance with clean inputs for AI pipelines.

AEC & Engineering

Render large-format drawings fast with precise measurement — distance, area and perimeter — plus collaborative markup for review.

Enterprise SaaS

New

Drop PDF viewing, editing, forms and signing into your CRM, HR and ERP products — ship enterprise-grade document UX in a few lines of code.

Why teams pick LightPDF SDK

CapabilityLightPDF SDKOpen-source
Edit feature coverage
100+ out of the box
Mostly viewing
Rendering performance
Millisecond, large docs
Average
Support
24×7 engineering
Community
Compliance
GDPR / SOC 2 ready
DIY
Time to ship
Under a week
1–3 months

The choice of global teams

10,000+
Enterprise customers
200M+
PDFs processed / month
60+
Countries served
99.99%
Service uptime

Our visual product

LightPDF
LightPDF

Edit, convert, sign, and organize PDFs effortlessly