PDF Merge — Free Online Tool
Combine multiple PDF files into a single document. Free, fast, and private.
About PDF Merge
PDF Merge is a free online tool that lets you combine multiple PDF files into one unified document in seconds. Whether you need to merge receipts, reports, presentations, or scanned documents, our tool handles it all directly in your browser. No files are uploaded to any server — your documents stay completely private on your device. Simply drag and drop your PDFs, arrange them in the desired order, and download the merged result. Supports up to 10 files with a maximum individual file size of 50MB.
How to Use PDF Merge
Upload your PDFs
Click the upload area or drag and drop your PDF files. You can select up to 10 files at once.
Arrange the order
Drag and drop the files to reorder them. The PDFs will be merged in the exact order shown on screen.
Click Merge
Press the Merge button and wait a few seconds while your files are combined locally.
Download your file
Click the download button to save the merged PDF to your device.
Frequently Asked Questions
Is PDF Merge really free?
Yes, PDF Merge is completely free. There are no limitations, no watermark, and no premium tiers. You can use it as many times as you want without ever paying.
Are my PDF files uploaded to any server?
No. All PDF merging happens entirely in your browser using client-side JavaScript. Your files never leave your device, ensuring complete privacy.
How many PDFs can I merge at once?
You can merge up to 10 PDF files in a single operation. Each individual file can be up to 50MB in size.
What order will the merged PDF be in?
The merged PDF follows the order you arrange the files in. You can reorder them by dragging before clicking the merge button.
Does PDF Merge work on mobile devices?
Yes! PDF Merge is fully responsive and works on iOS, Android, and any modern mobile browser.