PDF Merger

Combine multiple PDFs into a single file. Drag to reorder, processed in your browser.

100% Private
Your files never leave your device
Lightning fast
Optimised for speed
No sign-up
Use instantly, no account

Combine several PDFs into one document, in any order you choose. Primova merges them locally in your browser — no uploads, no email sign-up — with a thumbnail of each file so you can see exactly what you’re combining.

How to use PDF Merger

  1. 1Add two or more PDF files.
  2. 2Drag the cards to reorder them, or use Sort A–Z / Reverse.
  3. 3Set a name for the combined file.
  4. 4Click Merge and download the single PDF.

Keeping pages in the right order

The merged PDF follows the exact order of the cards on screen. Drag them to rearrange on desktop, use the up and down arrows on mobile, or one-tap Sort A–Z and Reverse to order by filename. A thumbnail of each file’s first page makes it easy to confirm you are combining the right documents before you export.

Quality and file size

Merging copies each page exactly as it was, so text stays selectable, links keep working, and images retain their original resolution — nothing is re-compressed. The combined file’s size is roughly the sum of the originals. Because everything runs in your browser, large documents are limited only by your device’s memory, not by an upload cap.

Frequently asked questions

No. Merging is performed in your browser with pdf-lib — the documents are combined on your own machine, which is why contracts, statements, and other sensitive PDFs stay completely private.
There’s no fixed limit — add as many as you need. Because it runs on your own device, very large documents simply take a little longer to process.
Yes. Drag the cards on desktop, use the up/down arrows on mobile, or one-tap Sort A–Z and Reverse. The final PDF follows the order shown.
No. Pages are copied as-is, so text stays selectable and images keep their original resolution.
Yes, entirely free — no account, no watermark stamped on your pages, and no cap on file count or size.

Still have questions?

If you can’t find the answer you’re looking for, our support team is here to help.

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