Combine multiple PDFs into one, or merge the front and back sides of a double-sided scan into the correct reading order. Preview every page, drag to reorder, rotate and delete before downloading. Free, unlimited, no account, no watermark — everything is processed locally in your browser.
Add files, then reorder whole files or individual pages in the preview below.
Drag whole files up or down in the list, or drag individual pages in the preview to fine-tune the final order.
For single-sided scanners that scan two-sided documents as two separate PDFs.
Pages are interleaved as 1, 2, 3, 4, 5, 6… Extra pages are appended at the end. In the preview you can drag pages to reorder, rotate a crooked page, or delete pages.
Drop two or more PDF files here, or click to select. Everything is processed locally in your browser — nothing is uploaded.
Drag whole files in the list, or drag individual page thumbnails below to fine-tune the order. Rotate a page 90° at a time or delete unwanted pages.
Click Merge & Download. Your combined PDF is generated instantly — no watermarks, no account, no task limits.
Run the front pages through your scanner (odd pages 1, 3, 5…), then flip the stack and scan the back pages (even pages 2, 4, 6…).
Add the front PDF and back PDF above. If your scanner read the back side backwards, switch on “back side reversed”.
Preview every page as thumbnails. Drag to reorder, rotate crooked pages, remove unwanted pages, then click Merge & Download.
No. Every file is processed locally in your browser using client-side JavaScript. Your PDFs never leave your device — you can even disconnect from the internet after the page loads.
Yes. Both merge modes show a page-by-page thumbnail preview. Drag any thumbnail to a new position, rotate a page 90° at a time, or delete a page — the downloaded PDF follows exactly what the preview shows.
No limits on file size or number of merges. Unlike services that cap you at 2–5 tasks a day, this tool runs entirely on your own device.
The tool interleaves every page it can pair and appends any remaining pages at the end. You can also drag thumbnails to adjust the final order before downloading.
Yes — switch to the “Merge PDFs” tab to combine any PDF files. Drag files or individual pages into the order you want and merge.