EditPDF AI
Open Editor
PDF Tools · Combine · Reorder · Free

Merge PDF
Files

Combine multiple PDF files into one. Drag to reorder, then download your merged PDF instantly.

📂

Drop your PDFs here

Select two or more PDF files to combine them into one

All processing happens in your browser · 100% private

📂 Unlimited Files

Combine as many PDFs as you need. Add files one by one or drop them all at once.

↕ Drag to Reorder

Drag rows or use the ▲▼ buttons to set the exact order before merging.

🔒 100% Private

All merging happens in your browser with pdf-lib. Your files never leave your device.

What is a PDF merger?

A PDF merger is a tool that combines two or more separate PDF files into a single, unified PDF document. Instead of emailing five attachments, you merge them into one polished file that opens in the correct order and is far easier for the recipient to navigate.

Merging is also essential for compliance and record-keeping: many systems require a single PDF for submission. EditPDF AI's merger runs entirely in your browser, so even confidential documents — contracts, payslips, medical records — are combined without ever touching a server.

Practical examples

Common ways people use this tool in real documents and day-to-day workflows.

Project managers

Combine weekly status reports, meeting notes, and deliverables into a single project-update PDF for stakeholders.

Legal & compliance teams

Merge contracts, amendments, exhibits, and cover letters into one filing-ready document.

Finance & accounting

Consolidate invoices, receipts, and bank statements into a single PDF for expense reporting or audit packages.

Students & academics

Join multiple research chapters, appendices, and cover pages into one submission-ready thesis PDF.

How it works

1

Add your PDFs

Upload two or more PDFs by dragging them onto the page or clicking to browse. You can add files from multiple folders.

2

Arrange the order

Drag and drop the file cards to reorder them exactly as you want them to appear in the final merged PDF.

3

Merge and download

Click Merge PDF. Your combined file downloads instantly — one PDF with all pages in the order you set.

Frequently asked questions

How many PDFs can I merge at once?+
There is no enforced limit. You can merge as many files as your browser memory allows — typically dozens of files or hundreds of pages without issue.
Will merging preserve bookmarks and hyperlinks?+
Internal hyperlinks are preserved. Complex bookmarks (outlines) may be flattened depending on the source PDFs, but all page content remains intact.
Can I rearrange pages from different PDFs?+
You can reorder the files before merging. For fine-grained page-level reordering across multiple PDFs, use our PDF Page Manager tool first.
Does the merged PDF retain the original quality?+
Yes. Pages are copied at their original resolution with no re-compression, so images, text, and fonts are unchanged.
Is there a file size limit?+
No server-side limit — merging runs entirely in your browser. Large files (each 100 MB+) may be slow, but there is no hard cap.

Related tools

Split a PDF into separate files→

Split a PDF into separate files by page range

Compress your merged PDF→

Reduce PDF file size without losing quality

Reorder pages before merging→

Reorder, rotate, and delete pages all in one place

Extract pages to merge selectively→

Pull specific pages from a PDF into a new file

Step-by-step guides

How to merge PDF files on any device