How to Merge PDF Files — Free, No Upload Required
Why Merge PDF Files?
Whether you're combining invoices, merging report sections, or putting together a presentation package, merging PDFs is one of the most common document tasks. Instead of emailing multiple files, you can combine them into a single, organized document.
Common reasons to merge PDFs:
- Combine invoices into a single file for accounting
- Merge report sections written by different team members
- Create application packages with multiple supporting documents
- Organize scanned documents into one file
How to Merge PDFs with PDFlys (Step-by-Step)
Merging PDFs with PDFlys takes just a few clicks — and your files never leave your device.
Step 1: Open the Merge PDF Tool
Navigate to the PDFlys Merge PDF tool. No account or signup needed.
Step 2: Upload Your PDF Files
Drag and drop your PDF files into the upload area, or click to browse your files. You can add as many PDFs as you need.
Step 3: Reorder Your Files
Once uploaded, drag the file thumbnails to arrange them in the order you want. The files will be merged in the order shown.
Step 4: Merge and Download
Click the Merge button. PDFlys processes everything in your browser — your files are never uploaded to any server. Once complete, download your merged PDF.
Tip
Your files stay 100% private. PDFlys processes everything locally in your browser using JavaScript. Nothing is ever uploaded to a server.
Frequently Asked Questions
Is it really free?
Yes! PDFlys is completely free with no hidden costs, no watermarks, and no file size limits.
Are my files safe?
Absolutely. PDFlys processes everything in your browser. Your PDF files never leave your device — they're not uploaded to any server.
Can I merge more than two PDFs?
Yes, you can merge as many PDF files as you need. There's no limit on the number of files.
Does it work on mobile?
Yes! PDFlys works on any device with a modern web browser — desktop, tablet, or mobile.
Other PDF Tools You Might Need
After merging your PDFs, you might want to:
- Compress the merged file to reduce its size
- Add page numbers for easier navigation
- Rotate pages that are in the wrong orientation
All of these tools are free and work the same way — directly in your browser with zero uploads.
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