ZapToolbox

Merge PDF — combine several PDFs into one

Join marksheets, certificates, invoices or chapters into a single PDF in seconds.

Drop PDF files here or click to chooseAdd two or more PDFs

🔒 Your files stay on your device — nothing is uploaded to any server.

How to use the Merge PDF

  1. Add two or more PDF files.
  2. Reorder them with ↑ if needed.
  3. Click “Merge PDFs” and download.

About this tool

Many application forms ask for a single PDF containing all your documents. Add the files, arrange them, and download one merged PDF. Because merging happens on your own device, confidential documents stay private.

Frequently asked questions

Can I merge password-protected PDFs?

Unlock them first with the password; encrypted PDFs can’t be merged reliably.

Will the quality change?

No. Pages are copied exactly as they are.