Merge PDF Online
Combine PDFs into one file — 100% in your browser. No uploads, no accounts, no sign-in to download. Reorder by drag, see every page count, download instantly.
Adobe makes you sign in to download a merged PDF. Here there is no account, no upload, nothing to sign in to.
Drop PDF files here
or — add as many as you like
Up to 50 files · 100 MB per file · 200 MB combined · 2,000 pages · nothing ever uploads
Merging happens on your device — your files never leave it.
Your merged PDF is ready
Split: extract pages from one PDF
Pick a file you added above, enter the pages to keep — for example 2-4 or 1, 3, 5-7 — and download a new PDF with only those pages.
Privacy proof — verify it yourself
This page merges your PDFs entirely on your device. All JavaScript is bundled locally — no CDNs, no webfonts. The only third-party requests are the site's own analytics (Google Analytics and a Cloudflare beacon), which load when the page opens and never see your files.
Network requests during processing: 0 (zero — as it should be)
- Press F12 to open developer tools, then open the Network tab.
- Drop PDFs above and merge them.
- Watch the Network tab: zero requests while it works. The counter above shows the same number live. (The page's own analytics load once when the page opens — before you start — and never touch your files.)
- Bonus: turn your internet off after the page loads — merging still works.
How to merge PDFs without uploading or signing in
- Drop your PDFs above (or browse, or paste). Each file shows its page count once it has been read — on your device, never on a server.
- Put them in order. Drag a card to a new spot, or use the Move up / Move down buttons. The merged PDF follows the on-screen order exactly, top to bottom.
- Press Merge PDFs. The totals bar shows the combined page count and size before you merge; afterwards it shows the merged file's page count and size.
- Download merged.pdf. No account, no sign-in, no waiting room. Your originals are untouched.
Why merge on your device instead of a server?
Server-based mergers — including Adobe's free flow — have to receive your files, store them, process them, and hand them back, which is why they ask you to sign in before you can download. Merging in the browser skips all of that: the files never leave your machine, there is nothing to sign up for, and there is no queue. The trade-off is honest and small: your browser holds the files in memory while merging, so very large jobs (over 200 MB combined or 2,000 pages) should be split into smaller batches.
Honest limitations
- Password-protected PDFs are refused — the tool cannot open them and will never ask for your password. Remove the password in your PDF reader first.
- Corrupt or truncated PDFs are refused with a clear message, and the other files are unaffected.
- Pages are copied exactly — text, images, and layout are untouched and nothing is re-compressed, so the merged file is roughly the sum of the inputs in size.
- Interactive features may not survive merging — form fields, annotations, and embedded media are copied as pages; some interactive behaviour can be lost in the process.
- Caps are evidence-based — 50 files, 100 MB per file, 200 MB combined, 2,000 pages. A 50-file merge and a 2,000-page merge were both tested and complete in about a second on a desktop.
Frequently asked questions
How can I merge PDFs without uploading them or signing in?
Use a tool that merges files locally in your browser. This merger loads your PDFs into your device's memory, combines their pages with JavaScript running on your machine, and offers the merged file for download — your PDF files are never sent to any server, and there is no account to sign in to. The only network requests on this page are the site's own analytics (Google Analytics and a Cloudflare beacon), which load when the page opens and never see your files. You can verify this by watching the Network tab in your browser's developer tools while it works: the live counter on this page shows zero requests during processing. The page keeps working with your internet disconnected after it loads.
How do I change the order of the PDFs before merging?
Drag any file card to a new position, or use the Move up / Move down buttons on each card — the buttons are fully keyboard-operable. The merged PDF follows the on-screen order exactly, top to bottom.
Is there a file size or page limit?
There is no daily limit and no account. The safety caps are 50 files per merge, 100 MB per file, 200 MB combined, and 2,000 pages in the merged output — because the browser holds every source document in memory at once. Merge bigger jobs in smaller batches.
What happens to a password-protected or corrupted PDF?
It is refused with a clear message, and the other files are unaffected. Password-protected PDFs cannot be merged until you remove the password in your PDF reader — this tool never asks for your password and never uploads the file. Corrupt or truncated PDFs, and files that are not really PDFs, are detected by their contents and refused the same way.
Can I extract pages from one PDF instead of merging?
Yes. Pick a file in the split panel and enter the pages to extract, for example “2-4” or “1, 3, 5-7”. The tool creates a new PDF containing only those pages, in order, on your device — again with no upload.
Will merging change the quality of my PDFs?
No. Merging copies each page exactly as it is — text, images, and layout are untouched, and nothing is re-compressed. The merged file is usually close to the sum of the inputs in size.
Why does Adobe ask me to sign in to merge PDFs?
Adobe's online merge runs on their servers, so they need an account to store your files and return the result. This tool runs entirely on your device instead, so there is no server, no account, and nothing to sign in to — which is also why your files stay private.
How do I verify my files really never upload?
Open your browser's developer tools (F12), go to the Network tab, then add files and merge them. You will see zero network requests during processing — the live counter on this page shows the same number. All JavaScript is vendored locally in the page; there are no CDNs or webfonts. The only third-party requests are the site's own analytics (Google Analytics and a Cloudflare beacon), which load when the page opens — they never see your files.