Merge PDF

Combine multiple PDF files into one document.

Organize Local-first processing
Ready
PDF files are processed locally in this browser tab.

Drop files here

Drag 2 or more PDFs here, or choose files from your device. Everything runs locally — nothing leaves your browser.

  • Files stay on your device
  • Reorder before merging
  • One-click download
Page 1 preview

Merging happens in this browser tab. Add the PDFs you want to join, drag them into the order you need, and download a single combined file. Nothing is uploaded, no account is required, and there is no fixed limit on file size.

Private by design

Your PDFs never leave your device. Merging runs entirely in this browser tab — the file is never sent to our servers.

Page-level control

Reorder whole files, or drag individual pages between them. Every page keeps its source file and original page number.

Common uses

Scans that arrived as separate files, a contract with its signed annexes, or receipts gathered into a single expense claim.

Merge PDF FAQs

Are my PDFs uploaded when I merge?

No. The merge runs in this browser tab and the file itself is never sent to our servers.

Does merging reduce quality?

No. Page content is copied as-is rather than re-compressed, so pages look exactly as they did before.

Is anything lost when merging?

Pages come through unchanged, but document-level extras do not travel with them: bookmarks, interactive form fields, digital signatures and document metadata are dropped from the merged file.

Can I merge PDFs with different page sizes?

Yes. A4 and Letter, portrait and landscape can be mixed freely — each page keeps its own dimensions in the merged file.

Can I merge password-protected PDFs?

Not directly. A protected file is flagged the moment you add it, with a link to Unlock PDF. Remove the password there, then add the file again. Unlock PDF

Can I add the same PDF twice?

No. Files are matched on their contents, so the same document is only ever added once — even if you renamed the copy.

How many PDFs can I merge at once?

There is no fixed limit on how many files you add. Because merging happens on your device, very large batches depend on its memory. You can try the tool with a bundled sample; Pro is required for your own files.

Will the merged PDF have a watermark?

Never. Nothing is stamped onto your file at any point.

Can I merge PDFs on my phone?

Yes, in any modern mobile browser with nothing to install. On a touch screen, drag a file or page by its handle to reorder it.

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