Shard Tools

Merge PDF

Combine several PDFs into one document entirely in your browser.

Maintained by Roshan.

Browser-local PDF tool

Use Merge PDF

Every PDF is opened, combined, and downloaded on this device. No upload request is made.

Merge order is the list orderPages keep their original size and rotation. Use the arrows to reorder documents before merging.

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About Merge PDF

Combining documents is usually the last step before someone submits an application, a claim, or a tender response. The receiving side wants one attachment, while the material arrives as a scanned identity page, a bank statement exported from a portal, and a letter written in a word processor. This tool joins those parts into a single document without sending anything anywhere. Your browser opens each file from your device, copies the page objects into a fresh document, and hands you the finished attachment as a temporary local download. Because the work happens in the tab, sensitive paperwork such as payslips or medical letters never travels across a network to reach a stranger's queue.

What happens to the PDF

  1. Add the documents you want to join. Each one is opened locally so the tool can display its real page total alongside the filename and byte size. That total comes from the document itself rather than from the filename, so you can spot a truncated download or a wrong version before it becomes part of your submission.
  2. Arrange the queue. Documents are joined strictly top to bottom, and the arrow controls move an entry earlier or later in that sequence. Anything added by mistake can be dropped from the queue with the remove control, which is faster than starting the selection again from an empty list.
  3. Press the merge button. The tool copies whole page objects rather than redrawing them, so each page arrives in the combined document at its original width, height, and rotation. A landscape scan sitting between two portrait letters stays landscape instead of being stretched to match its neighbours.
  4. Save the finished document. The result panel reports the combined page total and the output size, then offers a download created from a temporary blob reference inside this tab. Closing the tab discards both the queue and the generated file.

Common merge pdf jobs

Visa or licence application bundle

A passport scan, a proof-of-address letter, and a completed form are joined in the exact sequence the checklist lists them. Reordering before merging is quicker than renaming files so that an alphabetical sort happens to produce the right order.

Reassembling a document you split earlier

Pages pulled out for review can be joined back together once the corrections are agreed. Because page geometry is copied rather than re-rendered, the rebuilt file matches the original layout instead of drifting slightly on every round trip.

Monthly statements into one archive

Twelve statement downloads become a single yearly file for an accountant. Check the page total shown for each entry first; portals occasionally serve a one-page error notice that looks like a real statement until you count its pages.

Check before relying on the PDF

Questions about Merge PDF

Are my documents uploaded to a server?

No. Each file is read by your browser from your own device, and the combined document is assembled in the tab's memory. This site has no endpoint capable of receiving a file, and upload-style HTTP methods are refused at the edge, so there is nowhere for the data to be sent.

How do I control which document comes first?

The queue order is the output order. Use the up and down arrows beside any entry to move it, and confirm the sequence in the list before merging. The numbers shown to the left of each filename are the positions those pages will occupy.

How many files can I join at once?

Up to twenty documents, subject to a combined input ceiling of sixty-four megabytes and a five-hundred-page output limit. These bounds exist because everything is held in your browser's memory; merging in two batches is more reliable than pushing a single very large job.

Why did my fillable form stop working?

Form interactivity is stored at the document level, not on the page, so it cannot be copied along with the pages. The fields remain visible but inert. Flatten the completed form in the application that produced it, then join the flattened version.

Can I join a password-protected file?

Not while it is protected. The tool reports the encryption instead of guessing at a password or silently producing a broken document. Open the file in the software that created it, save a copy without the password, then add that copy to the queue.

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