Merge PDF

100% private

Combine PDFs into one document, in the order you choose. The files are read on this device and never uploaded.

Drop your PDFs here Or choose them from your device. Add two or more — they stay on your device, and there is nowhere for them to be sent.

Your documents

Drag a tile to reorder it, or use the arrows. The number on each tile is its position in the finished PDF.

1 Add your PDFs

Two or more. Drop them anywhere on this page, or press Choose PDFs. You can add more from another folder afterwards — the ones already there are kept.

2 Put them in order

Drag the tiles, or use the arrows on each one. Sort by name handles a numbered set in one press. Press Show all pages if you want to drop or turn individual pages before merging.

Start each document on a fresh sheet
Adds one blank page between documents, so double-sided printing never starts a new document on the back of the last one.

Working…

Advanced options

File name

Leave it blank and the result is named after the first document you added.

Keep the title and author
Off by default. A PDF’s stored title is very often the original file path on someone’s computer, which is rarely something you meant to pass on.

Checking usage…

Step by step

How to merge PDF files

Four steps, no account, no email address, and no watermark on the result.

Add your PDFs

Drag them anywhere onto this page, or press Choose PDFs. Nothing is sent when you do this; the browser simply gets permission to read the files off your disk.

Put them in order

Drag a tile where you want it, or use the arrows on it — those also work on a phone and with a keyboard, where dragging does not. Sort by name puts a numbered set right in one press, and it knows scan_2 comes before scan_10.

Drop anything you don’t need

Press Show all pages to expand the documents into their individual pages, then remove or turn any of them. Skip this entirely if you just want the files joined end to end.

Merge and download

Press the button once. It fills up as it works, turns green, and saves your merged PDF.

Private by design

Why this merger can’t leak your documents

The PDFs people merge are rarely holiday reading. They are bank statements, signed contracts, medical records, visa paperwork and exam forms — and every tool that ranks for this search uploads them to a server first. iLovePDF keeps a copy for a few hours. Smallpdf keeps one for an hour. Adobe and PDF24 upload too. They then ask you to trust that the copy is deleted. This one works differently, and you can verify that yourself in about ten seconds.

Zero uploads

The editor is downloaded to your browser once. From then on it reads your PDFs straight off your own disk and writes the new one in this tab. Your documents never enter a network request, so there is no copy of them anywhere for us to keep, lose, or be compelled to hand over.

No retention, because there is nothing to retain

The big converters upload your file and promise to delete it in an hour. That is a promise about a copy they have already taken. Here there is no copy and no hour — the result exists in this browser tab, and closing the tab is the whole of the deletion.

No account, no cap, no watermark

No sign-up, no email address, no 100 MB free-tier ceiling, no watermark stamped across your document, and no paid tier that unlocks the one option you actually needed.

To be precise about what does leave your device — because “100% private” is easy to say and worth checking. Two things, neither of them your documents:

1. When a PDF is written, this page sends one anonymous message to our counter saying “merge-pdf was used”. No file, no file name, no page count, nothing identifying you. It exists so the usage number above is a real one rather than something we invented.
2. Google Analytics records the page view and that a PDF was merged, the same as on every other page of this site. We don’t send it anything about your documents. You can block it and the tool works exactly the same.

Your PDFs are in none of that. They never enter a network request — and unlike a promise, that is something you can check for yourself. Turn off your wifi, reload this page, and use it anyway. It still works. No upload-based tool can pass that test.

At a glance

Tool specifications

Input	Two or more PDF files. Any version, including PDF 2.0
Output	One PDF containing every page of every document, in the order you set
Page quality	Untouched. Pages are copied at the object level, not re-rendered — text stays selectable and searchable, images are the same bytes, and vector graphics stay vector
Page order	Drag, or the arrows on each tile. Sort by name is numeric-aware, so scan_2 comes before scan_10
Per-page control	Show all pages expands the documents so individual pages can be turned or dropped before merging
Blank separators	Optional — one blank page between documents, for double-sided printing
Mixed page sizes	Kept as they are. An A4 document merged with a Letter one keeps both sizes rather than stretching either
Password-protected PDFs	Supported. Type the password once and it is used on this device only — it is never sent anywhere. Files that are merely “restricted” (an owner password, no open password) are handled without asking you at all
Bookmarks	Not carried into the result. Pages, text, images, links and filled-in form values all come through; the clickable contents tree does not
Digital signatures	Invalidated, as they are by every tool that edits a PDF, including Adobe’s — a signature certifies the exact bytes it was applied to
Metadata	The result starts clean: the title, author and creating application of the source are dropped unless you tick Keep the title and author. A PDF’s title is very often the original file path
Maximum size	50 files and 300 MB in total at once
Where processing happens	In your browser, on your device — nothing is uploaded
Works offline	Yes, once the page has loaded
Sign-up	Not required, not offered
Watermark	None
Price	Free

Questions

Merging PDFs, answered

Are my PDFs uploaded anywhere?

No. The merged PDF is written entirely inside your browser, using code that was downloaded to your device. Your documents are read from your own disk and never placed in a network request. The simplest proof: disconnect from the internet and merge something — it still works.

Is there a limit on how many files or how big they are?

Fifty files and 300 MB in total, which is a memory limit rather than a business one — past that the browser runs out of room part-way through and you would lose the work. The upload-based tools cap their free tier far lower, typically at 100 MB or a handful of files a day, because every megabyte costs them bandwidth. Here it costs us nothing, so the only ceiling is your own device.

Will merging reduce the quality of my pages?

No. Pages are copied at the object level rather than re-rendered, so the text in the merged file is the same text — still selectable, still searchable, still sharp at any zoom — and images are the identical bytes. This is not a tool that turns your document into pictures of itself.

Will I lose my bookmarks or my form fields?

Bookmarks, yes: the clickable contents tree of a source document does not survive the merge, though every page, all its text and all its links do. Fillable forms mostly survive, but if two of your documents use the same field name, filling that field in the merged file fills it in both places. The tool checks for both and warns you by name when it actually applies, rather than burying a disclaimer you would learn to ignore.

Can I merge a password-protected PDF?

Yes. Type the password when asked and the document is opened here, on your device — the password is never sent anywhere, and it is not stored after you close the tab. PDFs that are merely restricted, with an owner password but no open password, are handled without asking you at all. Most tools refuse both outright.

Can I reorder or remove individual pages while merging?

Yes — press Show all pages. The documents expand into their individual pages, and from there you can drag any page anywhere, turn it, or remove it. It starts collapsed because most merges only need the files in the right order, and a 200-page report expanded into 200 tiles buries the button.

Does the merged file still contain my name or my file paths?

Not unless you ask for it. The result starts with clean metadata, so the title, author and creating application of your source documents are dropped — which matters more than it sounds, because a PDF’s stored title is very often the full path of the file on someone’s computer. Tick Keep the title and author under Advanced options if you want the first document’s details carried over.

Do I need to sign up or pay?

No. There is no account, no email capture, no watermark and no paid tier. Nopturnia funds itself through affiliate links on its product buying guides, not through these tools.

Keep it handy

Save it, share it, or tell us what’s missing

Come back to it

Bookmark the page, or pin it to your saved tools so it sits at the top of the tools list on this device.

Something not right?

If a PDF wouldn’t open, a page came out the wrong way round, or an option you needed isn’t here, tell us. The form opens with the tool already filled in, so you only have to describe what happened.

Give feedback on this tool

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