PDF Merger
Combine multiple PDF files into one. Drag, drop, reorder, and download: everything stays in your browser and nothing is uploaded.
Drop PDF files here
or click to browse
Files to merge
How to merge PDF files
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1
Drop your PDF files onto the upload area or click Choose Files to browse. You can add as many files as you need.
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2
Drag and drop files in the list to set the exact order they will appear in the merged document. Use + Add more to include additional files at any time.
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3
Click Merge & Download to combine all PDFs into a single document. A progress bar shows each file being processed.
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4
Your merged PDF downloads automatically to your device, with no watermarks, no sign-up, and no data ever leaving your browser.
Privacy
All PDF merging happens in your browser. Your files never leave your device.
Reorder
Drag and drop to reorder files before merging into one clean document.
Export
Download as a single merged PDF, compatible with any PDF reader.
Why use GenerateQuick's PDF Merger?
Our free PDF Merger combines multiple documents into a single file entirely within your browser using the pdf-lib JavaScript library. Unlike cloud-based PDF tools, your files are never uploaded to a server, making it safe to use with sensitive documents such as contracts, invoices, financial statements, and medical records. There is no limit on the number of files you can merge, no individual file size cap, and no watermark added to the output.
Drag and drop to reorder your documents before merging so the final PDF has exactly the page sequence you need. Page content, images, text, and layout are all fully preserved in the output. The tool runs on any modern browser with no software installation required, making it perfect for quick document assembly at your desk or on the go.
Frequently Asked Questions
Are my PDF files uploaded to a server?
No. All merging is performed using the pdf-lib JavaScript library running directly in your browser. Your PDFs are never sent to any server, making it safe for confidential documents such as contracts, invoices, and medical records.
How many PDFs can I merge at once?
There is no hard limit on the number of files. The practical ceiling depends on your device's available memory. Most modern computers handle dozens of PDFs without any problem.
Will the merged PDF preserve bookmarks and form fields?
Page content, images, text, and layout are fully preserved. Bookmarks (outlines) and interactive form fields may not carry over to the merged document, depending on the complexity of the source files.