Combine two or more PDF files into a single document, in the order you choose.
1. Click the box above and select two or more PDF files (or drag and drop them in).
2. Reorder them if needed — files merge top to bottom in the list.
3. Click "Merge PDFs" and download your combined file.
Because everything runs locally in your browser using WebAssembly, there's no file size limit imposed by a server, no waiting on an upload, and no copy of your document is ever transmitted anywhere.
Is there a limit to how many PDFs I can merge?
No fixed limit — merge as many files as you need in one go, though very large batches will naturally take a little longer to process.
Can I reorder the files before merging?
Yes — drag the file thumbnails into whatever order you want the final document to follow.
Will merging affect the quality or content of my PDFs?
No — pages are combined exactly as they are; nothing is re-rendered or compressed in the process.