Is my file uploaded anywhere?
No. Open your browser's developer tools, go to the Network tab, and run a merge. You will see no request carrying your document.
Merge PDF
Combine multiple PDFs into one file.
Upload several PDF documents and merge them into a polished, single PDF for business sharing, invoicing, or archiving.
This file never leaves your device
Processing happens entirely in your browser. Nothing is uploaded, nothing is stored, nothing is sent to us. Close the tab and it's gone.
Check for yourself — open DevTools, go to the Network tab, and run the tool. You'll see no upload.
Selected files
No files selected yet. Add multiple PDFs to merge.
Action panel
Use merge if you need a single professional document from several PDFs, such as reports, proposals, or invoices.
Free for everyone, no login required.
Processed entirely in your browser. Your files are never uploaded.
Premium adds saved history and an ad-free workspace.
What this tool does
Combines several PDF files into a single document, in the order you choose. Page content, layout, embedded fonts and images are preserved exactly. This is a structural join, not a re-render, so nothing is degraded in the process.
When to use Merge PDF
- • Month-end close. Twelve supplier invoices combined into one approval file, rather than twelve separate attachments nobody can track.
- • Audit submissions. Auditors typically want one document per category. Merging lets you deliver a clean bundle instead of a folder of loose files.
- • Expense claims. Receipt photographs plus the completed claim form as a single attachment.
- • Contracts. A main agreement plus signed annexures plus schedules, assembled in the correct order.
- • Applications and submissions. Passport copy, ID, salary certificate and bank statement combined into the one file a portal will accept.
Why it is useful
- • A single file is easier to track and share than many attachments.
- • Merged documents reduce confusion about missing pages.
- • It simplifies document handoffs for clients and teams.
How to use Merge PDF
- 1. Upload two or more PDF files.
- 2. Confirm the files you want to combine.
- 3. Drag to rearrange the order before merging.
- 4. Download one merged PDF and share it.
Privacy and safety note
Your browser reads each file into memory and uses pdf-lib to copy page objects from every source document into one new document. The process happens on your machine, with no upload step. If you disconnected your internet after this page finished loading, the merge would still complete normally.
Frequently asked questions
Can you see my documents?
No. They never reach our servers, so there is no copy for anyone here to access.
Does it work offline?
Once the page has loaded, yes. The processing code runs locally.
What happens to bookmarks and form fields?
Page content transfers cleanly. Document-level bookmarks and interactive form fields may not survive a merge, because the PDF format stores these at document level rather than page level. This affects every merge tool, not just this one.
Is there a limit on the number of files?
No fixed limit. Practical limits come from your device's memory.
Can I merge password-protected files?
Not directly. Remove the password first, then merge.