About Split Pages in Half
Lay an open book on a flatbed scanner and every scan captures two pages at once. The PDF that comes out has one wide page per spread: awkward on a phone screen, wasteful to print, and confusing when somebody asks you to look at “page 37”. This tool divides each page into two, so a 40-page scan of spreads becomes an 80-page document of single pages, still in order.
A vertical cut gives a left half and a right half. That is the default, and it suits book spreads as well as handouts printed two to a sheet. A horizontal cut gives a top half and a bottom half instead. Normally the left half comes first; for books read from right to left, such as Japanese manga or vertically set text, tick Right half first so the new pages follow the reading direction.
The cut can cover the whole document or only the thumbnails you select. Pages left unselected stay whole, which matters when the front and back covers were scanned on their own and should not be halved.
How to use Split Pages in Half
- Add the scanned PDFOpen the file of spreads. A thumbnail appears for every page, so you can see at a glance which pages are double and which are single.
- Choose the direction and pagesKeep left/right for book spreads or switch to top/bottom, tick Right half first for right-to-left books, and either apply the cut to every page or select only the spreads.
- Split and downloadRun the split and save the new PDF. Page through it once: each half should now be its own page, and any covers you left out should still be whole.
When people use it
A library book scanned two pages at a time
Thirty spreads of a reference book went through the flatbed. Splitting left and right gives sixty single pages that read properly on a tablet, while the covers scanned separately are left as they are.
Manga and other right-to-left volumes
In a scanned manga spread, the right-hand page is read first. With Right half first ticked, each right half becomes the earlier page, so the story runs in the order the artist intended.
Two forms stacked on one sheet
Some receipts, tickets and half-letter forms are printed two to a page, one above the other. A top/bottom split puts each on its own page, ready to file or forward separately.
A crop, not a redraw
Each new page is the original page with its visible area, known as the crop box, set to one half. Nothing is rasterised or recompressed in the process. Scans keep their full resolution, vector graphics stay sharp, and any text layer, whether typed or added by OCR, remains selectable. It also means the file doesn’t shrink when the pages are halved: the complete content of every original page is still stored.
If your scan doesn’t have a text layer yet, OCR PDF can make it searchable. The title, author and similar fields can’t be set from this page; Edit PDF metadata handles those once the halves are saved.
The other half is hidden, not deleted
A viewer or printer shows only the half that belongs to each new page, but the half you can’t see is still inside the file. Software that reads a PDF’s text, such as a search box or a copy-all command, may pick up words from it. Never rely on this tool to keep something away from the person who receives the file. Crop PDF works on the same principle, so it is not a way to remove content either.
Scanning spreads for a clean cut
- Centre the spine. The cut falls at the exact middle of the page, so line the book’s gutter up with the centre of the scanner glass. An off-centre spine leaves a strip of the facing page on one half.
- Scan covers on their own. A single cover shouldn’t be cut in two; leave its thumbnail unselected.
- Keep the book straight. The tool doesn’t straighten crooked scans, so a tilted spread stays tilted in both halves.
- Settle the reading direction first. Choose left-first or right-first before splitting; fixing the order afterwards means swapping every pair by hand in Rearrange PDF.
How this differs from Split PDF
Split PDF separates whole pages into different files and never cuts a page. This tool keeps one file and doubles the pages inside it. When you need both, halve the spreads here first, then break the result into chapters there. The opposite of this tool, putting several pages onto one sheet, is N-up PDF.
Password-protected scans need Unlock PDF and the password first, and a very large book scan may need more memory than a phone can spare. The split runs inside your browser tab and nothing is uploaded; you can verify it.