Merge several PDF files into one document
Join two or more PDF files into a single document, in the order you choose. Nothing is uploaded and no watermark is added.
How it works
Select your PDFs
Choose the files in the order you want them combined.
Merge them
Every page is copied across in sequence, preserving quality.
Check the total
The page count and file size are shown before you save.
The document is read locally
A PDF often carries more than its pages — names, contract terms, bank details. Here the document is opened by your browser, changed in place, and saved back to you. There is no upload step, so there is no copy anywhere else.
- Opened from your disk by your browser — not sent anywhere first.
- Held in the tab while the tool works, then dropped.
- Saved to your device by your browser, not by a link to a server.
- Closing the tab clears the working copy completely.
- No account, so nothing is ever attached to an identity.
- No tracking of what you worked on or what was inside the file.
There is no queue, no waiting room and no retention policy to read. The document is released the moment the tab closes. The how it works page explains why nothing leaves your device, and our verification guide shows how to check with your network off.
What people use it for
Combining a report from several files
Chapters, invoices or forms often arrive separately. Merge them into one document before you send it.
Sharing one section of a long document
Nobody needs all two hundred pages when they asked for the summary. Send only what was requested.
Getting paperwork through email
Mail servers reject large attachments outright. A smaller document avoids the bounced message.
Preparing a document for print
Printers and copy shops accept a clean, correctly sized file far more readily than a folder of images.
Formats & limits
What this tool accepts, what it produces, and what it will never ask you for.
- Input
- Select two or more PDFs — they are joined in the order shown
- Output
- One combined PDF
- Maximum file size
- Set by your device, not by a plan
- Files per run
- Several at once
- Sign-up required
- None
- Watermark
- Never added
- Works offline
- Yes, once the page has loaded
- Supported browsers
- Any current Chrome, Edge, Firefox or Safari
When something goes wrong
Encrypted and damaged documents stop with a plain message rather than a spinner that never finishes. If a PDF opens in your reader it will normally open here.
The file is either encrypted or damaged. Remove the password first, then try again.
Why not an upload site
An upload-based PDF tool sends the whole document to a server, does the work there, and sends it back. Removing that round trip removes the waiting, the caps and the copy.
A typical upload site
This tool
Questions
Will merging reduce the quality of my PDFs?
No. Pages are copied across exactly as they are, so text stays selectable and images keep their original resolution.
Is there a limit on how many files I can merge?
There is no fixed limit. The constraint is your device's available memory, since the whole operation happens locally in the browser.
What about password-protected PDFs?
Files that are encrypted cannot be merged. Remove the password first, then merge the unlocked copies.
Is there a file size limit?
No fixed limit is imposed by the tool. The practical ceiling is how much memory your device has free, because the whole job runs inside this browser tab.
Does it work without an internet connection?
Yes, once the page has loaded. Nothing is fetched while you work, so a dropped connection does not interrupt a run.
Do I need an account or an email address?
No. There is nothing to sign up for, and nothing is ever attached to an identity because no file leaves your device.
Compared with the alternatives
Merging something you would rather not send anywhere — a contract, a set of accounts, NDA paperwork or patient records — is a different problem from merging holiday photos. Here is how to merge a confidential PDF without uploading it.