PDF Merge
Drag and drop multiple PDF files, reorder them, and merge them into a single downloadable file. Everything runs on your device.
What Does This Tool Do?
The PDF Merge tool combines several PDF files into one document. It's ideal for bundling invoices, contracts, or reports into a single file before sharing. You can reorder pages exactly the way you want using drag-and-drop or the up/down buttons.
How to Use It
- Drag at least two PDF files into the box, or click to browse.
- Reorder the files in the list with the "Move up"/"Move down" buttons.
- Click "Merge PDFs".
- Your merged PDF starts downloading automatically.
Supported File Formats
This tool only accepts .pdf files. If you need to create a PDF from another format (like JPG or PNG images), use the File Converter instead.
Related Tools
Advantages
- Bundle separate contracts, invoices, or reports into a single file.
- Reorder pages exactly the way you want with drag-and-drop.
- Because nothing is uploaded, your private documents stay confidential.
- No sign-up, no usage limits — free to use as often as you like.
- Results download instantly, with no processing queue.
Why Your Files Are Safe
This tool runs entirely client-side: your PDF files are never uploaded to a server. Merging happens directly in your browser via the pdf-lib library — close the tab and nothing is left behind.
Frequently Asked Questions
Is merging PDFs free?
Yes, it's completely free and requires no sign-up.
Are my files uploaded to a server?
No. The entire merge happens in your browser — your files never leave your device.
How many PDF files can I merge at once?
There's no fixed limit — add as many files as your browser's memory allows.
Can I merge a password-protected PDF?
No, a password-protected or corrupted PDF can't be opened; remove the password first and try again.
Can I change the page order of the merged PDF?
Yes, use the "Move up"/"Move down" buttons before or after adding files to change their order.
Read our full guide for more:
How to Merge PDF Files Online →