Merge PDF
without uploading it.
Combine two or more PDF files into one, right in your browser.
Drop PDFs here
Drop two or more PDFs, or click to browse your files.
Reorder them with the ▲/▼ arrows — this is the order pages will appear in the merged file.
Click "Merge PDFs" and download the combined file.
Why there's no upload step
Merging is one of the most common everyday PDF tasks — combining scanned pages, invoices, or a contract with its signature page into one file. This tool loads each PDF's raw pages via pdf-lib and reassembles them locally in your browser, so your documents never touch a server.
Are my PDFs uploaded anywhere?+
No. Merging happens entirely in your browser using pdf-lib — your files are never sent to a server.
How many PDFs can I merge?+
No fixed limit — add as many as you like. Very large batches will simply take a little longer since everything processes on your device.
Does merging affect quality?+
No — pages are copied as-is from each source PDF, so text, images, and formatting stay exactly as they were.
Can I change the page order?+
Yes — use the up/down arrows next to each file before merging to set the order.