Merge PDF
Combine several PDF files into a single document in the right order.
Add two or more PDF files, drag them into the order you want, and download a single combined document. Page quality is preserved exactly.
How the merge pdf works
- 1Drop your PDF files onto the upload area, or browse to select them.
- 2Arrange the files — pages are combined from top to bottom.
- 3Press Merge; the documents are combined in your browser, never uploaded.
- 4Download the merged PDF. Files are cleared from memory when you leave the page.
Frequently asked questions about the merge pdf
Are my files uploaded to a server?+
No. This tool runs entirely inside your browser using modern web APIs. Your file is read into memory on your own device, processed locally and never transmitted to Data Wave Cloud or any third party.
How many PDFs can I merge at once?+
There is no fixed limit. Because merging happens on your own device, the practical limit is your available memory - most computers handle dozens of documents and several hundred pages comfortably.
Can I change the order of the files?+
Yes. Use the up and down arrows on each file to move it before or after the others. The final PDF follows the order shown in the list.
Is this tool free to use?+
Yes, completely. There is no account, no trial, no watermark and no daily limit. Data Wave Cloud is funded by unobtrusive advertising so the tools stay free permanently.