Merge PDF Files Online — Free
Processed entirely in your browser. Your file is never uploaded to a server.
Drop 2+ PDF files here or click to browse
This tool merges multiple PDF files into a single PDF, in the order you select them.
Drop your files above, then click a file to add more if needed. The merged PDF downloads automatically once ready.
FAQ
Is my file uploaded anywhere?
No. Merging happens entirely in your browser using WebAssembly — your PDFs never leave your device.
Is there a file size or page limit?
No hard limit, but very large PDFs (500MB+) may be slow depending on your device's memory.
Does this work on mobile?
Yes — merging runs the same way on mobile browsers as desktop.