Split Scanned PDF: Separate Image-Only Documents Reliably
Splitting scanned PDFs is tricky — no text layer means no easy page markers. Here's how to split them cleanly while keeping image quality intact.
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Tags: pdf, developer-tools, splitting, scanning
Split Scanned PDFs: Handle Image-Heavy Documents Scanned PDFs present unique challenges for splitting. They are larger than digital PDFs of the same page count, they may have inconsistent page orientations, and they lack a searchable text layer that could help you identify where to split. Despite this, splitting a scanned PDF is technically straightforward — the operation copies image pages without re-rendering them, preserving quality exactly. Why Scanned PDFs Are Larger Every page in a scanned PDF is an image — typically a JPEG or TIFF file embedded in the PDF container. The size of each page depends on: Scan resolution (DPI): A 300 DPI scan of an A4 page produces an image of about 2480 × 3508 pixels. At 150 DPI, that is 1240 × 1754 pixels — roughly 4× smaller. Color mode: Color scans…
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