Merge
Merge PDF files online
Open the first document, drop in the others and arrange every page exactly how you want it before exporting a single clean PDF.
How it works
- 1
Open the first PDF
It loads instantly as a grid of page thumbnails.
- 2
Drop in the others
Drag another PDF anywhere on the page and its pages are appended.
- 3
Order and download
Reorder with drag & drop, then export one merged document.
Combine PDF files without uploading them
Merging PDFs is the most searched PDF task after editing, and it is also the one where people most often upload confidential documents to unknown servers. VoltPDF merges locally: drop a second (or third) PDF into the page area and the documents are joined in the order you choose.
Page sizes are preserved, so an A4 report and a Letter invoice can live in the same file, and you can reorder or rotate the merged pages before downloading.
Frequently asked questions
How many PDFs can I merge?
As many as you like. Add them one after another; the only practical limit is your device's memory.
Are my files uploaded to a server?
No. Everything is processed inside your browser, so nothing is left behind once you close the tab.
Do I need an account or a subscription?
No. Every tool is open: no sign-up, no page limits and no watermarks.