Merge PDFs with drag and drop
Add several PDF files, drag their thumbnails to set the exact merge order, then combine them into a single downloadable document.
How it works
Each PDF you add shows a thumbnail of its first page so you can identify it easily. Drag a thumbnail to another position to change the merge order: this visual order is exactly the one used to assemble the final document.
How is this different from the standard "Merge PDFs" tool?
Merging works the same way, but here each file is represented by a visual preview of its first page and can be reordered by dragging and dropping its thumbnail, in addition to the usual arrows.
Does drag and drop work without a mouse?
On a touchscreen where native drag and drop is awkward, use the "↑" and "↓" buttons under each thumbnail: they move the file exactly like a drag and drop, without relying on touch.
Thumbnails are generated and files are merged entirely in your browser (pdf.js for the preview, WebAssembly for the merge) — your documents never leave your device.