Merge PDF
Combine multiple PDF files into one, right in your browser — reorder before merging, nothing uploaded.
100% private — every PDF is read and combined entirely on your device using a PDF library loaded on this page. Nothing is ever uploaded to a server, not even temporarily.
Drag & drop PDF files here
Add two or more PDFs. Drag a card (or use the arrows) to reorder them — that's the order they'll appear in the merged file.
Pages keep their original content and formatting — merging only changes the order files appear in, never what's on them. Large batches are limited only by your device's memory.
How it works
Add your PDFs
Drag and drop two or more PDF files, or click "Choose files".
Put them in order
Drag a card or use the up/down arrows — the list order becomes the merged file's page order.
Merge and download
Click "Merge PDFs" and download the single combined file.
What people use a PDF merger for
One file is almost always easier to send, print or file away than several.
Combining scanned receipts
Building one report from pieces
One attachment instead of many
Assembling a contract packet
Merging scanned photo pages
How merging PDFs works
A PDF merger doesn't flatten your files into images or re-render them — it copies each page's actual content, structure and formatting from every source file into one new document, in the order you set. That's why the result stays crisp and searchable: text is still text, and any embedded images keep their original resolution, since nothing gets rasterized in the process.
The order matters more than it might seem. Whatever order the cards are in when you click "Merge PDFs" is exactly the page order in the final file — drag the first card to reorder it, or use the up/down arrows for finer control, before generating anything. There's nothing to undo after the fact besides starting over, so it's worth a quick check before downloading.
Because this tool runs entirely client-side, there's no upload step and no file-size limit imposed by a server — the practical ceiling is just how much your own browser tab can hold in memory at once, which is generous for typical documents and receipts, and only becomes a factor with unusually large scanned batches.
Frequently asked questions
Are my PDF files uploaded anywhere?
No. Every file you add is read and combined entirely inside your own browser using a PDF library loaded on this page. Nothing is ever sent to a server, not even temporarily.
Can I control the order of the merged PDF?
Yes. Files appear in the order you add them by default. Drag a card to reorder it, or use the up/down arrows, before merging — that's the exact order pages will appear in the final PDF.
How many PDF files can I merge at once?
There's no hard limit built into the tool — add as many as you need. Very large batches are limited only by your device's own memory.
Does merging change the content of my original PDFs?
No. Each page is copied into the new combined PDF exactly as it was — text, images and formatting are preserved. Your original files are never modified.
Can I merge password-protected PDFs?
Not directly — an encrypted PDF needs to be unlocked first, since this tool (like most in-browser PDF tools) can't read a file it doesn't have the password for. Remove the password in whatever program originally protected it, then merge the unlocked file.
Is this PDF merger free to use?
Yes, completely free, with no account or sign-up, and it runs entirely in your browser.