Developer Hub & API Philosophy

Welcome, developers! This page provides information about the architecture of PDF Toolkit and how you can leverage the same technologies in your own projects.

Our Privacy-First Approach: No Server-Side API

PDF Toolkit does not offer a traditional server-side REST API. Our core principle is that your files should never be uploaded to a server. All processing happens directly in your browser using JavaScript.

• 100% Privacy: Your files never leave your computer.
• Incredible Speed: No upload or download latency.
• Client-Side: All operations are performed locally.

Our Technology Stack

Our toolkit is built on the shoulders of incredible open-source libraries:

• pdf-lib.js: For creating and modifying PDF documents.
• PDF.js: Gold standard for rendering PDFs.
• JSZip: For handling ZIP archives.

Example: Client-Side PDF Merging

// This code runs entirely in the user's browser
async function mergePdfs(file1, file2) {
  const mergedPdf = await PDFLib.PDFDocument.create();

  const pdf1Bytes = await file1.arrayBuffer();
  const pdf1 = await PDFLib.PDFDocument.load(pdf1Bytes);
  const copiedPages1 = await mergedPdf.copyPages(pdf1, pdf1.getPageIndices());
  copiedPages1.forEach((page) => mergedPdf.addPage(page));

  const mergedPdfBytes = await mergedPdf.save();
}

Contact

For partnership ideas or inquiries, please contact us.