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How to Make a PDF Smaller Before Sharing

Large PDFs are often caused by oversized images, scanned pages or unnecessary visual data.

Updated September 2026

Find what makes the PDF large

A scanned or photo-heavy document can be much larger than a text-heavy PDF.

Use sensible image resolution

Documents intended for screen reading rarely need the same image detail as high-quality print work.

Check readability after changes

Inspect small text, signatures, diagrams and scanned pages.

Before you share