PDF Merger

Combine several PDF files into a single document in the order you select them. The merge runs locally with pdf-lib, so your files are never uploaded to any server.

Merge PDF Files

Choose PDF Files (select multiple)

Hold Ctrl (or Cmd) to select several files at once.

How It Works

Each PDF is read as an ArrayBuffer and parsed with pdf-lib, a pure JavaScript PDF toolkit that works entirely in the browser.

A new empty document is created, and every page is copied from the source files in your selected order.

The combined document is saved as bytes and downloaded as a single merged.pdf.

Page order follows the order of the files you select.

Frequently Asked Questions (FAQ)

No! File conversions, resizings, and text extractions are rendered locally using HTML5 Canvas, pdf.js, or jsPDF.

Yes, conversions use native browser canvas rendering and optimized compression controls to preserve quality.

Disclaimer Notice

Document Disclaimer: File conversions execute locally within your browser. DeckTools does not store or access your uploaded files.

PDF Merger

Merge PDF Files

Merge Result

Disclaimer Notice