Merge PDF files online, without uploading them

Combine any number of PDFs in the order you choose. Nothing is uploaded.

Drop your PDFs here

Add two or more files. They merge in the order shown.

Nothing is uploaded. The file is read on your device.

How to merge PDF files

Step 1

Add your PDFs

Drop them onto the box or choose them. Add as many as you need. The page count of each is shown as you go.

Step 2

Put them in order

Files merge top to bottom. Use the arrows to move any file up or down. This matters more than it sounds: file managers sort alphabetically, so "Section 10" lands before "Section 2".

Step 3

Merge and download

One combined PDF, with pages copied across untouched. Text stays selectable and image quality is unchanged.

What it handles

What the merge tool handles

01

Any number of files

Add as many PDFs as you need. Page counts are shown as you go so you know what you are building.

02

Your order, kept

Files merge in list order, and you can move any file up or down before you run it.

03

Nothing re-encoded

Pages are copied across as they are. Text stays selectable and quality is untouched.

04

No upload

The merge happens on your own machine, which matters when the documents are contracts or statements.

Things worth knowing before you merge

Merging is mechanically simple. The mistakes are almost always about order or expectations.

Check the order, not the result

A merged file with two sections transposed looks entirely normal. Verify the sequence in the list before running it, because spotting it afterwards means scrolling the whole document.

Merge before you number

If you plan to add page numbers or a watermark, merge first. Numbering a document and then reordering it leaves the numbers attached to the wrong pages.

Size is roughly additive

A merged file is about the sum of its inputs. If the result is dramatically smaller, something was dropped. Check the page count matches what you expected.

Scans merge fine

Merging does not need to read the text, so scanned PDFs combine without trouble. The result is simply still a scan.

Questions

Is there a file size or count limit?

No fixed limit. The work happens on your device, so a very large merge takes longer but is not capped by anyone else's quota.

Does merging reduce quality?

No. Pages are copied intact rather than re-rendered, so text stays selectable and images are untouched.

Can I merge a scanned PDF?

Yes. Merging does not need to read the text, so scans combine fine. The result is simply still a scan.