// how merging works & tips
Each PDF you add becomes a card showing a thumbnail of its first page, the
filename, and how many pages it contains. Drag the cards around to set the
final order: the number badge on each card tells you where it will land.
When you click Merge PDFs, the files are stitched together in
that exact order and offered to you as a single merged.pdf download.
- Single-page scans: if your scanner saves each page as its own PDF, drop them all in at once and reorder until they read correctly.
- Page counts: the running total at the bottom shows how many pages the merged document will have.
- Remove a file: click the ✕ in the corner of any card to drop it before merging.
Privacy: your PDFs are read straight from your device into the page and combined locally with pdf-lib. No file is uploaded; close the tab and everything is gone. It even works offline once the page has loaded.
Related: need to delete, rotate, or reorder pages within a single PDF? Use the Organize PDF tool instead.
// a free, browser-only tool by Tiempo Software, built in Omaha, Nebraska. Runs entirely in your browser; nothing you enter is uploaded. see all tools.