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PDF Halve Pages

Split scanned book spreads into individual pages

📄

PDFページ二分割

ファイルをドラッグ&ドロップ

About PDF Halve Pages

The 'PDF Halve Pages' tool splits each page of a PDF file into two halves — either left and right (vertical split) or top and bottom (horizontal split) — producing a new PDF with twice the number of pages. This is especially useful for scanned book spreads, where a single scanned page contains two book pages side by side, making text too small to read comfortably on tablets or smartphones.

By splitting each spread into individual pages, you can view one page at a time in full-screen mode, dramatically improving readability on mobile devices and e-readers. Whether you're digitizing textbooks, comics, journals, or reference materials, this tool converts those hard-to-read two-page layouts into clean, single-page documents optimized for digital consumption.

Choose between 'Vertical split (left/right)' for landscape book spreads, and 'Horizontal split (top/bottom)' for vertically stacked slide content or multi-section documents. The tool uses the CropBox method, which adjusts only the visible area of each page without permanently altering the underlying PDF data — you can always re-process from the original if needed.

All processing runs entirely within your browser using client-side JavaScript, ensuring your confidential documents and personal data are never uploaded to any external server. No installation required, no registration needed, completely free to use.

How to use PDF Halve Pages

  1. Drag and drop or click to upload the PDF file you want to split.
  2. Select the split direction: 'Vertical (left/right)' for scanned book spreads, or 'Horizontal (top/bottom)' for top-bottom splits.
  3. Click the 'Split & Save' button and the processed PDF — with each page halved — will be downloaded automatically.

Benefits of PDF Halve Pages

  • Dramatically improve readability of scanned spreads: Split scanned book or notebook spreads into individual pages so text fills the entire screen on tablets and smartphones, making reading far more comfortable. Perfect for e-book readers as well.
  • Supports both vertical and horizontal splits: Choose left/right splitting for landscape book spreads or top/bottom splitting for presentation slides and vertically stacked content — flexible enough for any use case.
  • CropBox method fully preserves original data: Uses the CropBox approach to modify only the visible area of each page, leaving all original PDF data completely intact and unmodified. Process with confidence.
  • Pre-display file size information: Automatically calculates and shows input and output file sizes before processing, so you know exactly what to expect and can plan storage accordingly.

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