Merge PDF

Combine multiple PDF files into a single document. Reorder them freely before merging, and download the finished file instantly.

Free to use
Works on any device
Stays on your device

Up to 30 files at once
Your order, not ours
Page sizes kept as they are
One document back

PDF

Combine PDFs into one document

Pick two or more PDFs · they are merged in the order you set, on your device, and never uploaded

Drag & drop files here

or choose a file from your device

No internet? Get the Windows appOn your phone? Get the phone app

Everything Merge PDF can do

Join several PDFs into one document, in the order you decide.

Your order, not ours

Combine two or more PDFs into a single document
Move any file earlier or later before you merge
Add more files to the set without starting the list again
Take a file back out of the list
Every file numbered in the position it will be joined at

See it before you merge

Each file drawn as its own page, big enough to recognise
Page count shown under every document
A running total of the pages going in
Start a fresh set straight from the result screen

What the joined file keeps

Pages copied across exactly as they are
Text arrives as real, selectable text
Each file keeps its own page size and orientation
Page rotation travels with the page it belongs to
Bookmarks and fillable form fields come along with their pages
One merged PDF back, ready to download
Done in your browser, so your files are never uploaded

How it works

Merge PDF in three steps

Add your PDFs

Drag your PDFs onto the panel, or click it to pick them from your device. Everything happens in your browser, so the files stay on your device and are never uploaded.

Put them in order

Every file you add appears in the list. Use the arrows to put them in the order you want the finished document to follow, and remove anything you added by mistake.

Merge and download

The files are joined into a single document with all pages intact. No re-compression, no quality loss.

Step by step

Merge PDF: a visual walkthrough

Combine up to 30 documents into one, in exactly the order you want.

Add your PDFs
Drag your PDFs onto the panel, or click it to pick them from your device. Everything happens in your browser, so the files stay on your device and are never uploaded.
Put them in order
Every file you add appears in the list. Use the arrows to put them in the order you want the finished document to follow, and remove anything you added by mistake.
Merge and download
The files are joined into a single document with all pages intact. No re-compression, no quality loss.

Merge PDF files offline

On this page your files are joined in your browser and never uploaded. To merge with no internet connection at all, use the KovaPDF app for Windows.

Merge PDF is one of the app's tools marked Works offline: on a train, on a flight or on a work computer that cannot reach the web, it still combines your files, and the result is saved on your own computer. Offline use has a daily allowance. Split, rotate, organize and page numbers work offline too.

The app runs on Windows 10 and 11. On a Mac or a phone, this page is the way to merge, and it still keeps your files on your device.

Frequently asked questions about Merge PDF

Can I merge PDF files offline?

Yes, in the KovaPDF app for Windows. Merge PDF works there with no internet connection, within a daily offline allowance.

Are my files uploaded when I merge them on this page?

No. Merging on this page happens in your browser, so the files stay on your device.

How do I combine several PDFs into one file?

Add two or more PDFs, put them in the order you want, and press Merge PDFs. You get back a single PDF containing every page of every file, in that order. The files you added are not changed.

How many files can I merge at once?

Up to 30 in a single operation, within the 200-page and 50 MB limits.

Can I control the page order?

Yes, file by file. Each PDF appears as a numbered card showing its first page; use the arrows on a card to move it earlier or later, or remove it, before you merge. The pages inside each file keep their own order.

Can I merge PDFs on my phone?

Yes. The tool runs in your phone's browser on Android or iPhone, so there is nothing to install. Pick the PDFs from your files, set the order with the arrows, and download the merged PDF.

Does merging reduce quality?

No. Pages are copied as they are, so text stays sharp and images don't change. This also means the merged file is about the size of all the files added together.

Can I merge password-protected PDFs?

Not while the password is on. A protected file is refused with a message saying so. If you know the password, remove it with Unlock PDF first, then merge the unlocked copy.

Can I merge only some pages from each PDF?

Not in one step, because Merge always joins whole files. Take the pages you need out of each file with Split PDF first and merge those, or merge everything and then remove the extra pages with Delete Pages.

Are bookmarks kept when I merge PDFs?

Yes. Each file's bookmarks (the outline shown in a viewer's sidebar) come across one file after another, and each still opens its own page in the merged file. Fillable form fields stay fillable too. If two files have a field with the same name, the second one is renamed so neither overwrites the other.

What happens to my file?

It stays on your device. Your browser does the work and makes the download, so the file is never uploaded. We keep a record that the tool was used, but not the file name or what is in the file.

Is it free?

Yes. Every tool works without paying and without an account. Files can be up to 200 pages and 50 MB, and a run that fails costs you nothing. Pro removes the limits.

Do I need to create an account?

No. All tools work without signing in. An account raises your allowance and lets you see what you have processed.