Does merging upload my files?

No. The PDFs are combined on your device with pdf-lib; nothing is uploaded to merge them.

Can I set the order of the files?

Yes. Drag or use the arrows to arrange the files before merging.

Each PDF can be up to 50 MB, which covers most documents while keeping the browser responsive.

No. Merging copies the pages as-is without recompressing them.

PDF

Drop in any number of PDFs, drag them into the order you want, and download a single merged file. Uses pdf-lib in the browser. Nothing is uploaded.

Free · runs in your browser · no sign-up to use.

Drop files here or click to browse

PDF files up to 50 MB each · processed in your browser

Combine several PDFs into one and reorder them before merging. Uses pdf-lib in your browser, so the documents aren't uploaded to merge them.

Does merging upload my files?: No. The PDFs are combined on your device with pdf-lib; nothing is uploaded to merge them.
Can I set the order of the files?: Yes. Drag or use the arrows to arrange the files before merging.
Is there a file size limit?: Each PDF can be up to 50 MB, which covers most documents while keeping the browser responsive.
Does it change the original quality?: No. Merging copies the pages as-is without recompressing them.

Free, and they run in your browser too.