PDF Merger

A signed contract, a cover letter, and a supporting document often need to travel together as one file for an email attachment or an online submission form. Rather than installing desktop software, this tool combines multiple PDF files into a single document directly in your browser, in the order you choose.

How the merge order works

Files are combined in the order you see them listed — the first file uploaded becomes the first pages of the merged PDF, followed by the next, and so on. Use the Remove button next to any file to take it out of the list before merging if you added the wrong one or want to reorder by re-selecting files in a different sequence.

Common situations for merging PDFs

Combining several scanned pages (each saved as a separate PDF) into one multi-page document before submitting a form. Joining an invoice, a receipt, and a warranty card into a single file for an expense report or return request. Assembling multiple chapters or sections of a report, each drafted and exported separately, into one complete document to send to a client or supervisor.

Frequently Asked Questions

Is there a limit to how many PDFs I can merge at once? No hard limit is built in, though very large numbers of large files may take longer to process since everything runs in your browser's memory rather than on a server.

Are my PDF files uploaded to a server? No — merging happens entirely in your browser using a client-side JavaScript library; your files are never transmitted anywhere.

Does merging affect the quality or content of the original pages? No — each page is copied exactly as it was in the source file, with no re-compression or content changes.