WebToolSuite

PDF Merge

Free PDF merger: Combine up to 20 PDF files in any order. Drag to set the order, then download one file. Processing stays in your browser.

Merge PDF Files
Upload up to 20 PDF files and merge them into one document. Drag a file to set the order.

Drag and drop PDF files here, or click to browse. Up to 20 files.

How to Merge PDF Files

Step-by-Step Guide:

  1. Click "Browse Files" or drag and drop PDF files into the upload area
  2. Add at least 2 PDF files that you want to merge together
  3. Drag a file by the handle to set the merge order.
  4. Click "Merge & Download" to combine all PDFs into a single file
  5. The merged PDF will be downloaded automatically to your device

Key Features:

  • 100% client-side processing - files never leave your device
  • Merge up to 20 PDF files at once, in any order
  • Drag files into the order you want before merging
  • Preview file names, sizes, and page counts
  • Fast and secure PDF merging in your browser
  • No file size limits or registration required

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Frequently Asked Questions

How do I merge PDF files?

Upload 2 to 20 PDF files using the file browser or drag-and-drop. Drag a file in the list to set the order, then click 'Merge & Download'. The merged file downloads automatically.

Can I merge PDFs in a specific order?

Yes. Drag a file by its handle to move it up or down the list. Files merge from top to bottom in the order shown.

Is there a limit to the number of PDFs I can merge?

Yes. You can merge up to 20 PDF files at once. Remove a file if you need to add a different one. Very large PDFs may take longer to process depending on your device.

Are my PDF files safe and secure?

Yes! All PDF processing happens entirely in your browser using client-side JavaScript. Your files are never uploaded to any server, ensuring complete privacy and security. Your documents never leave your device.

Do I need to install software to merge PDFs?

No! This is a completely online tool that works directly in your web browser. You don't need to download or install any software. It works on all modern browsers including Chrome, Firefox, Safari, and Edge.

Can I merge password-protected PDFs?

Password-protected or encrypted PDFs cannot be merged directly. You'll need to remove the password protection first using the original software that created the PDF, then use this tool to merge them.

What if a file is not a valid PDF?

If a file is damaged or is not a real PDF, merge stops and names that file. Download it again, then try again. A valid PDF starts with a PDF header.