Click or drag to upload multiple PDF files for merging

Supports .pdf format, up to 10 files at once, free PDF merger one-click solution

After uploading multiple PDF files, drag to adjust merge order. All processing done locally in browser, files not uploaded to server

Why Choose Our Free PDF Merger?

Fast PDF Merging

Browser local processing, seconds to merge multiple PDFs into one file, no upload download wait.

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Drag-drop Sorting

Support drag to adjust PDF merge order, flexible control of merged page arrangement.

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Batch Processing

Support uploading up to 10 PDF files at once to batch merge into one complete document.

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PDF Preview

Preview each PDF's page count info, confirm merge order and file content.

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Local Processing

All PDF merge operations done locally in browser, not uploaded to server, protects privacy.

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Free to Use

Completely free, no registration login required, no hidden fees, no usage limit.

How to Merge PDF Files - Step by Step Tutorial

1

Upload PDF Files

Click upload area or drag multiple PDF files to the page. Supports selecting up to 10 PDF files at once.

2

Adjust Merge Order

Drag files in the list to adjust merge order. Files on top will appear first in the merged PDF.

3

Start Merge

Click "Start PDF Merge" button, tool will automatically merge all PDFs into one file.

4

Download Result

After merge complete, click "Download Merged PDF" button to save the merged document.

PDF Merge FAQs

Q: Is PDF merger free?
A: Completely free! No registration login required, no hidden fees, no usage limit. Use anytime you need to merge PDFs.
Q: How many PDFs can merge at once?
A: Supports uploading up to 10 PDF files at once for batch merge. If need merge more, can do multiple merges.
Q: How to adjust PDF merge order?
A: After uploading files, drag files in the list to adjust order. Files on top will appear first in merged PDF.
Q: Will merged PDF quality decrease?
A: No quality loss. This tool uses professional PDF library, merge process doesn't recompress images or change text quality.
Q: Are my files secure?
A: Very secure! All merge operations done locally in your browser, files not uploaded to any server, completely protects your privacy.
Q: Can encrypted PDFs be merged?
A: Password-protected PDFs need to be unlocked first before merging. You can use our PDF password removal tool to unlock.