Merge PDF

Combine several PDF files into one document. Add your files, drag them into the order you want, and merge. Pages are copied across untouched, so text stays selectable and images keep their full resolution. Your files are read in the browser and never leave your device.

Add your PDF files

PDF only

Drop PDFs here or click to browse

Add two or more files, then arrange them in the order you want

PDF

Result

Add PDFs to start

Your merged PDF will appear here

Pages are copied rather than re-encoded, so the merge keeps your original quality and does not inflate the file size.

How to merge PDF files

Add your PDFs

Drop two or more PDF files into the tool, or click to browse your device. Each file is read locally.

Set the order

Move files up or down until the list matches the order you want. This is exactly how the pages will be arranged.

Merge and download

Click Merge PDF, check the reported page count, then download the combined document.

Why use Aihangsoft Merge PDF

Any order you need

Reorder the list before merging, so a report, its appendix and its cover sheet always land in the right sequence.

Your documents stay private

The merge happens in your browser. Contracts, invoices and IDs are never uploaded, stored or queued on a server.

No watermark, no limits

No page limit, no account and no branding stamped onto your document. Merge as often as you like.

Built for everyday PDF work

Reports, contracts and forms

Stitch a signed cover page, the body of an agreement and its schedules into a single file that is easier to send and archive than three separate attachments.

Use case: legal, admin, HR paperwork

Scanned batches in the right order

A stack of single page scans can be assembled in reading order without rescanning the batch or renaming every file first.

Use case: scans, receipts, expense claims

Assemble study material

Join lecture notes, past papers and reading lists into one revision pack, with the newest material at the end or the start, whichever suits you.

Use case: students, teachers, researchers

Original quality kept

Pages are copied across as they are. Text stays selectable, links keep working and photos are not downsampled to save space.

Use case: print, publishing, archiving

Related tools

Split PDF

Cut one file into parts

Organize PDF

Rotate, delete and reorder pages

Image to PDF

Turn photos into a PDF

Merge PDF FAQ

Yes. The merge runs inside your browser, so your PDFs are never uploaded to a server. There is no sign-up, no page limit and no fee, and the output never carries a watermark.
There is no fixed limit built into the tool. In practice the ceiling is your device memory, because every file is held locally while the pages are combined. A few dozen typical documents merge comfortably on a laptop.
Yes. Every file appears in a list and you can move it up or down until the sequence is right. The merged document follows exactly the order shown in that list.
No. Pages are copied across as they are, so text stays selectable, links keep working and images keep their original resolution. Nothing is re-compressed or turned into an image.
Not directly, because an encrypted file has to be unlocked before its pages can be read. Open it in your PDF reader, save an unprotected copy, and merge that copy instead.
Yes. The tool runs in any modern browser on desktop, tablet and phone. Larger batches are faster on a computer simply because it has more memory to work with.

Combine your PDFs now

Free, private and unlimited. No account needed.

Upload PDF files