Merge PDF
Combine multiple PDF files into a single document. Drag to reorder, then merge. 100% free, private — works entirely in your browser.
Drop PDF files here
or click to browse · Select multiple files
How to Merge PDF Files
Combining PDF files has never been easier. Our free PDF merger works right in your browser — no file uploads to any server, so your documents stay completely private.
Steps to Merge
1. Add Files: Drag and drop PDF files onto the upload area, or click to browse your files.
2. Reorder: Drag files in the list to arrange them in your desired order.
3. Merge: Click "Merge PDFs" and your combined document will download automatically.
Features
• 100% Private: Files never leave your device. All processing happens locally in your browser.
• No Limits: Merge as many PDFs as you want, with no file size restrictions.
• Drag & Drop: Reorder files easily by dragging them in the list.
• Fast: Powered by pdf-lib, a high-performance JavaScript PDF library.
How to Use This Tool
Upload Your PDFs
Click the upload area or drag and drop multiple PDF files. You can add as many files as you need.
Reorder Files
Drag the files in the list to arrange them in the exact order you want them to appear in the merged document.
Merge & Download
Click the "Merge PDFs" button. Your combined PDF will be generated instantly and downloaded automatically.
Key Features
100% Private & Secure
Your files never leave your device. All merging happens locally in your browser — no server uploads, no data collection.
No File Limits
Merge as many PDF files as you want with no file size restrictions. Works with large documents too.
Drag & Drop Reordering
Easily rearrange your PDF files by dragging them in the list before merging.
Lightning Fast
Powered by pdf-lib, a high-performance JavaScript library that processes PDFs instantly in your browser.
Completely Free
No subscriptions, no hidden fees, no watermarks. Unlimited PDF merging at zero cost.
Works Everywhere
Use on any device — desktop, laptop, tablet, or phone. No software installation needed.
Common Use Cases
- Combining multiple invoices or receipts into a single document for accounting
- Merging chapters of a book or report into one PDF for distribution
- Consolidating scanned documents into a single organized file
- Creating a portfolio by combining multiple PDF certificates or projects
- Preparing a single submission file from multiple form attachments
Frequently Asked Questions
Is it safe to merge PDFs online?
Absolutely. Our PDF merger runs entirely in your browser using JavaScript. Your files are never uploaded to any server — they stay on your device the entire time. We don't store, access, or share your documents.
How many PDF files can I merge at once?
There is no limit on the number of files you can merge. You can combine 2, 10, or even 50+ PDF files into a single document. The only limitation is your device's available memory.
Will the quality of my PDFs be affected?
No. Our merger preserves the original quality of all pages, including text, images, fonts, and formatting. The merged PDF is identical in quality to the original files.
Can I reorder pages before merging?
Yes! Simply drag and drop the files in the list to arrange them in your preferred order before clicking merge. The final document will follow the order you set.
Do I need to create an account to merge PDFs?
No. Our PDF merger is completely free to use without any signup, registration, or account creation. Just open the page and start merging.
What browsers are supported?
Our tool works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera on both desktop and mobile devices.