What Halve PDF Pages does
Scan an open book, a magazine or a notebook on a flatbed and every PDF page contains two facing pages side by side. Print a 2-up handout to PDF and each page holds two slides. Halve PDF Pages cuts every page down the middle — left and right, or top and bottom — producing a new PDF with twice as many pages, each showing one half. The cut is done by setting each page's crop box, so it is instant and lossless; the tool runs in your browser without uploading the file.
How the halves are made
Each source page is copied twice into the output. The first copy's visible area is restricted to the left (or top) half, the second to the right (or bottom) half. Viewers and printers show only the visible area, so each output page appears as a single, correctly sized page. The underlying content is not altered — text remains selectable and images keep their resolution.
| Option | Cut | Output order | Use for |
|---|---|---|---|
| Down the middle | Vertical line at half the width | Left half, then right half | Scanned book spreads, 2-up landscape handouts |
| Across the middle | Horizontal line at half the height | Top half, then bottom half | Portrait pages printed 2-up vertically, tickets, labels |
Book and magazine scans
- The output order is left page, right page, which is reading order for left-to-right languages. For right-to-left books (Arabic, Hebrew, manga), reverse the pairs with Reorder PDF Pages or process in the other direction and swap.
- Spreads scanned slightly off-centre end up with a sliver of the other page at the inner edge. Follow up with Crop PDF to trim a few points from the inside edge of every page.
- A cover or a single-page scan in the same file will also be halved. Extract it first and merge it back afterwards.
- Rotate first if the spreads were scanned sideways; the halving assumes the page displays upright.
Other uses
- Turning a 2-up printout back into single pages for reading on a tablet.
- Splitting sheets of two identical tickets, vouchers or labels into one per page.
- Separating a bilingual document laid out with two languages side by side.
- Undoing an N-Up layout when the original file is lost.
Why file size stays the same
Halving hides content with a crop box rather than deleting it; each output page still references the full original page content. The file therefore stays about the same size (slightly larger, because page objects are duplicated). If you need the hidden halves physically removed — for confidentiality or size — rasterize the result with Compress PDF.