Combine scanned pages
Stitch together multi-part scans from a phone or copier into one continuous document.
Free PDF tool
Merge PDF Files
Combine multiple PDF files into one document right in your browser. Drag files into the order you want, click merge, and download the combined PDF. Nothing is uploaded to a server — the entire merge runs locally on your device.
100% in browserDrag to reorderUnlimited filesNo account required
Merge PDFs
Add two or more PDF files, drag to reorder, then click merge.
Files never leave your device. Merging runs entirely in your browser using WebAssembly.
Why merge PDFs in your browser?
Your files stay private
Most online PDF mergers upload your documents to a server. This tool does the entire merge locally, so contracts, invoices, medical records, and other sensitive PDFs never leave your computer.
Fast, with no size queue
No upload bandwidth, no waiting in a queue. Even large PDFs combine in a few seconds, limited only by your device's memory.
How to merge PDF files
- 01
Add your PDFs
Drop two or more PDFs onto the upload area, or click to pick files from your computer.
- 02
Drag to reorder
Grab any row in the list and drop it where you want it. The numbers update to show the final order.
- 03
Merge and download
Click merge to combine the files into a single PDF, then download it — or convert it into a shareable link with PDFtoLink.
Common use cases
Bundle invoices and receipts
Merge expense receipts into a single PDF before sending an expense report or tax submission.
Assemble proposals
Join cover letters, quotes, case studies, and contracts into one tidy PDF for clients.
Compile research material
Combine journal articles, lecture notes, and reference PDFs into one searchable document.
Prepare court or HR packets
Stack evidence, forms, and supporting documents in the exact order required for filing.
Build product manuals
Merge per-section PDFs into a single user manual or handbook for distribution.
Merge PDF FAQ
Are my PDFs uploaded anywhere?
No. The merge runs in your browser using WebAssembly. The files never leave your device, so even sensitive documents stay private.
How many PDFs can I merge at once?
There is no fixed limit. The practical maximum depends on your device memory. For most laptops, combining hundreds of pages totalling a few hundred megabytes works fine.
Can I reorder the files before merging?
Yes. After you add the files, drag any row in the list and drop it where you want it. The order in the list is the order in the merged PDF.
Does the merged PDF preserve bookmarks and form fields?
The page content, text, and embedded fonts are preserved. Bookmarks and interactive form fields from the original files are dropped because they can conflict when files are combined.
Can I turn the merged PDF into a shareable link?
Yes. After downloading, return to the PDFtoLink homepage and upload the merged file to get an instant shareable link with optional password protection and view tracking.
Is it really free?
Yes. The merge tool is free and does not require an account or sign-up.