Free Browser Tool

Merge PDF Files Instantly

Combine up to 10 PDFs into one — reorder, rotate, preview, and download. Everything happens in your browser. Zero uploads, zero servers, zero cost.

🔒 100% Private ⚡ Browser-only ✨ Free Forever 📄 Up to 10 files
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Drop your PDF files here

or click to browse from your device

Accepts .pdf only  ·  Max 10 files  ·  No file size limit

Files to Merge
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Ready to download
.pdf
PDF preview is not available in this browser.
Use the download button below to access your merged file.
How It Works

Merge PDFs in 3 Simple Steps

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1. Upload Files

Drag and drop or click to browse. Select up to 10 PDF files from your device. No account needed.

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2. Arrange & Rotate

Drag files to set your preferred order. Optionally preview each file and rotate any file's pages.

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3. Merge & Download

Click Merge. Your browser combines the PDFs instantly. Preview the result and download the merged file.

Why Use This Tool

Built for Privacy & Speed

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100% Private — No Uploads

Your files never leave your device. All PDF processing happens inside your browser using JavaScript. Ideal for confidential documents.

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Drag-and-Drop Reordering

Arrange your PDF files in any order before merging. Simply drag a file up or down to change its position in the final document.

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Per-File Page Rotation

Fix landscape or upside-down pages. Choose +90°, 180°, or −90° rotation per file before merging. Applied to all pages of that file.

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In-Browser Preview

Preview any uploaded PDF before merging, and view the final merged PDF right in the page before downloading it.

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Fast & Offline-Ready

Merging is powered by pdf-lib, a high-performance JavaScript library. Works even without an internet connection after the page loads.

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Completely Free, Forever

No sign-up, no watermark, no file size limits, no hidden fees. Merge PDFs as many times as you need at zero cost.

FAQ

Common Questions

Does this PDF merger upload my files to a server?
No. All processing happens entirely in your browser using JavaScript. Your files never leave your device. This tool requires no internet connection after the page loads.
How many PDF files can I merge at once?
You can merge up to 10 PDF files in a single operation. To merge more, download the merged result and use it as one of your input files for a second round.
Can I change the order of pages before merging?
Yes. After uploading, drag the files in the list to reorder them. The final merged PDF will follow the order shown in the list from top to bottom.
Can I rotate pages in the merged PDF?
Yes. Each file has a Rotate selector. Choose 0° (original), +90° (rotate right), 180° (flip), or −90°/270° (rotate left). The rotation is applied to all pages of that file in the merged output.
Does this tool work on mobile phones?
Yes. The tool is fully responsive and works on modern mobile browsers. However, in-browser PDF preview may be limited on some mobile browsers — the Download button always works regardless.
Are password-protected PDFs supported?
Password-protected PDFs cannot be merged. Please remove the password from your PDFs first using your preferred PDF reader, then use this tool to merge them.
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