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PDF Merge
Combine multiple PDF files into one. Drag to reorder, then download the merged result instantly.
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Drop PDF files here or click to upload
PDF files only · Multiple files supported
Add at least 2 PDF files to merge them into one.
Why Use This PDF Merger?
- 🔀 Drag to Reorder — Set the exact page order before merging
- 🔒 100% Private — Files are processed locally — never uploaded to any server
- ⚡ Instant — Merging starts immediately, no queue or wait time
- 🆓 Always Free — No account, no watermark, no hidden fees
How to Merge PDF Files
- 1Click the upload area or drag and drop your PDF files.
- 2Drag the file rows to reorder them — the merged PDF will follow this order.
- 3Click "Merge PDFs" to combine all files into a single PDF.
- 4Download the merged PDF with one click.
Frequently Asked Questions
- Is this PDF merger free?
- Yes, completely free with no signup, no watermark, and no page limits.
- Are my PDF files uploaded to a server?
- No. All merging happens entirely in your browser using JavaScript (pdf-lib). Your files never leave your device.
- How many PDF files can I merge at once?
- There is no hard limit on the number of files. Performance depends on your browser and the total file size. Most modern browsers handle dozens of files and hundreds of pages without issues.
- Does merging preserve the original quality?
- Yes. The tool copies pages directly from each PDF without re-encoding, so text, images and vector graphics are preserved at their original quality.
- Can I reorder the files before merging?
- Yes. Drag the rows in the file list to change the order. You can also use the up/down arrow buttons. The merged PDF will follow the order shown.