How to Merge PDF Files Online

Select Files

Choose the PDF files you want to combine from your computer.

Arrange Order

Drag and drop the files to set the perfect sequence for your document.

Merge & Download

Click merge and your single PDF will be ready for download instantly.

Why use Lume PDF Merger?

Unlike other online PDF tools, Lume processes your files entirely in your browser. Your documents are never uploaded to a server, ensuring 100% privacy and security for sensitive information.

Frequently Asked Questions

Is it safe to merge PDFs on Lume?

Yes! We use client-side technology, meaning your files stay on your device. We don't see or store your data.

Is there a file size limit?

The only limit is your device's memory. Lume handles even large documents with ease.