Combine multiple PDFs into one document. Drag, reorder, and merge — your files never leave your browser.
🔒 No uploads
⚡ No watermark
🆓 Always free
📱 Works on mobile
📄
Drop PDF files here
or click to browse your computer
ℹ️ Work from a copy of your file and keep the original safe. Check the result before you use it.
No PDFs selected yet. Drop files above to begin.
🛡️ Your PDFs are processed entirely in your browser. Files are never sent to any server.
What this tool does
The PDF merger combines multiple PDF files into a single document in your chosen order. Add two or more PDFs, drag to reorder, and click Merge. The combined file downloads immediately. Merging runs entirely in your browser — your files are never sent to any server. Use it to combine a cover letter and CV, merge monthly report pages, assemble multi-document contract packages, or consolidate separately scanned pages into one PDF.
How It Works
From multiple files to one clean PDF in seconds
No software, no waiting, no uploads. Just drop your PDFs, arrange them, and merge.
01📁
Add PDFs
Drag and drop multiple PDF files into the tool, or click to browse. Add as many as you need.
02↕️
Sort & Arrange
Use the arrow buttons to set the order. The top file will be first in the merged document.
03📤
Download & Done
Click Merge PDFs and your combined file downloads instantly. No waiting, no account.
Common Use Cases
Why people merge PDFs every day
One organized file is always better than a folder of scattered PDFs.
📝
Contracts
Combine signature pages, addendums, and exhibits into one complete contract package.
📊
Reports
Merge sections, appendices, and cover pages into one professional report PDF.
🧾
Invoices
Bundle multiple invoices into one file for expense submissions and accounting.
🎓
Homework
Combine scanned assignment pages into one submission-ready PDF.
⚖️
Legal Docs
Assemble court filings, contracts, and supporting documents into one package.
🎨
Portfolios
Merge project pages, case studies, and cover sheets into one portfolio PDF.
Why Privacy Matters
Your files stay on your device
Every RapidTools PDF and image tool processes files entirely inside your browser using JavaScript. Nothing is sent to any server — not your file names, not your file content, not your data.
This is fundamentally different from cloud-based tools that upload your documents to third-party servers. With RapidTools, there is no server receiving your files. Nothing to breach, retain, or misuse.
✓
Files processed in your browser — never transmitted anywhere
✓
Works 100% offline after page load
✓
No account, no registration, no data retention
✓
Open-source libraries — fully auditable
Feature
RapidTools
Files stay on device
✓
No server uploads
✓
Works offline once the page is open
✓
No account needed
✓
Completely free
✓
No file size limit set by RapidTools
✓
FAQ
Common questions about merging PDFs
Everything you need to know about combining PDF files online.
Add your PDF files by dragging them into the drop zone or clicking to browse. Arrange them in your desired order using the arrow buttons on each file card. Optionally name your output file, then click Merge PDFs to combine them into a single document and download the result.
Yes. RapidTools processes all files locally in your browser using JavaScript and the PDF-lib library. Your PDFs never get uploaded to our servers or any third-party service. All merging happens on your device, ensuring complete privacy and security for sensitive documents like contracts, financial records, or medical files.
There is no limit on the number of PDF files you can merge. The only constraint is your browser's available memory. Most modern browsers can easily handle merging 20-50 PDFs, and often many more depending on file sizes.
Yes. Each added file has up and down arrow buttons that let you reorder the PDFs. You can also remove specific files and add more before merging. Files are combined in the order they appear in the list, from top to bottom.
No. Merging keeps the original quality of every page: text remains selectable and searchable, images keep their resolution, and the formatting, fonts, and web links on each page are kept. Bookmarks (the outline panel) from the source files are not carried over to the merged PDF.
No. RapidTools never adds watermarks to merged PDFs. Your output file is clean and professional, identical to what you would get from desktop PDF software.
Yes, the PDF merger works on mobile devices including iOS (iPhone/iPad) and Android. The tool is fully responsive and touch-friendly.
No. Encrypted or password-protected PDFs cannot be merged without first removing the password protection. You will need to unlock them before merging.
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