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?

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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.