How to cut a PDF in half
Cutting a PDF in half means splitting every page into two output pages, in the direction you pick: vertical (left and right) or horizontal (top and bottom). On BestPDFInTheWorld it takes four steps: drag the file in, pick the direction, pick the pages and download the result. The cut is made on the visible area of the page and everything runs in your browser, the file never leaves your computer, and the text stays selectable on both halves. This tool is part of the Premium subscription, EUR 1.99 a month, which removes the limits on every tool and adds OCR. Sign PDF opens on the free plan, with one signature a day.
Verified 2026-08-12
- Four steps, nothing to install: choose the file, the direction, the pages, download.
- Vertical splits the page into two narrower pages; horizontal into two shorter ones. The midpoint is calculated against each page's current visible area.
- Quality preserved: nothing is converted to an image, so the text stays selectable, searchable and copyable on both halves.
- No uploads: all processing runs in the browser, start to finish, the file never leaves your computer.
- This tool is part of the Premium subscription, EUR 1.99 a month, which removes the limits on every tool and adds OCR. Sign PDF opens on the free plan, with one signature a day.
How to cut a PDF in half, step by step
Cutting a PDF in half splits every page into two output pages, and takes under a minute:
- Open the Cut in half tool.
- Drag the PDF into the window, or click to pick it.
- Pick the direction, vertical (left and right) or horizontal (top and bottom), and, if you like, the pages to cut: the field takes ranges (1-3) and single numbers (5), separated by comma.
- Press cut and download the PDF with double the pages. The processing runs on your computer, not on a server.
Nothing to install, no account and no upload wait. The result appears instantly, with the same quality as the original file.
Vertical or horizontal cut: what changes?
Vertical splits each page into two narrower ones (left and right); horizontal into two shorter ones (top and bottom). The midpoint is calculated against each page's current visible area, not the whole sheet: if a page already has a visible area smaller than the sheet, common in already trimmed scans, the midpoint follows that area.
The order of the output pages is predictable: each chosen page produces two consecutive pages, the first half followed by the second, in the position the original page was in. Pages you do not pick go into the result unchanged.
Tips for cutting a PDF in half
- Do not expect it to separate two scans side by side. The cut is made on the visible area of the page (the CropBox), the same technique as the Crop margins tool: each half stays the same source page, just with half the visible area. Physically separating two scanned images side by side would require rasterizing each half, which would trade selectable text for an image. What this tool does well is splitting a scanned A3 booklet into loose A4 sheets, or dividing a poster into two halves to work on each separately.
- Content outside the half you pick is not deleted. It stays inside the file, merely hidden, so this is not the tool for redacting or permanently removing information.
- Want four parts from one page? Cut vertically, download the result, then run it through this tool again with the horizontal direction to reach the four quadrants. Both directions in one pass is not possible.
- If the goal is a smaller file, cutting is not the way. The result gets bigger, the two halves share the same underlying content. For compressing, use the Compress PDF tool; to split pages into separate files, Split PDF; to change the order, Reorder pages.
Is cutting a PDF in half free? What are the limits?
No. This tool is part of the Premium subscription, EUR 1.99 a month, which removes the limits on every tool and adds OCR. Sign PDF opens on the free plan, with one signature a day.
| Plan | What it allows |
|---|---|
| Free plan | Only Sign PDF opens without paying, with one signature a day and files up to 10 MB. |
| Premium (EUR 1.99/month) | This tool is part of the subscription: no limits anywhere, plus OCR and larger batches. |
Questions about cutting a PDF in half.
Does this actually separate two scanned images side by side?
No, and this is the difference that matters most. The cut is made on the visible area of the page (the CropBox), the same technique as the Crop margins tool: each half stays the same source page, just with half the visible area at a time. To physically separate two scanned images side by side you would need to rasterize each half, which trades selectable text for an image. For splitting a scanned A3 booklet into loose A4 sheets, this tool does exactly that.
Is the text still text after cutting?
Yes. Nothing is converted to an image, so the text stays selectable, searchable and copyable on both halves.
Can I cut only some pages and leave the rest untouched?
You can. The pages field takes ranges (1-3) and single numbers (5), separated by comma. Pages you do not pick go into the result unchanged, one by one.
The tool refused the cut. What happened?
It happens when a page already has such a small visible area that the half would be under one point wide or tall, which would produce an effectively blank page. The message says on which page it happened.
Did the final file get double the size?
It gets bigger, but not necessarily double: the two halves of a page share the same underlying content, only the visible area differs. If the goal is a smaller file, the right tool is Compress PDF.
Can I cut vertically and horizontally at the same time, to get four parts?
Not in one pass. Cut vertically, download the result, then run it through this tool again with the horizontal direction to reach the four quadrants.
Do I need an account to cut a PDF in half?
Yes. The account (magic link, no password) is needed for the subscription. This tool is part of the Premium subscription, EUR 1.99 a month, which removes the limits on every tool and adds OCR. Sign PDF opens on the free plan, with one signature a day.
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A page that needs
to become two? Cut it.
Open the tool and try it. Nothing to install, nothing sent anywhere.
Open Cut in half