How to Compress PDF for Scanned PDF

Scanned PDF files are often very large due to high-resolution images. Here is how to compress a scanned PDF while keeping the text readable.

Why scanned PDFs are so large

Each scanned page is stored as an image, which increases file size significantly compared to text-based PDFs.

The best solution: optimize scanned images

Smart compression reduces image resolution and removes unnecessary data while preserving readability and document clarity.

Compress PDF Now

How to compress a scanned PDF

  1. Open the Compress PDF tool
  2. Upload your scanned PDF file
  3. Apply compression settings
  4. Download the reduced PDF file

Why scanned PDFs are larger

Scanned documents contain high-resolution images that increase file size significantly.

How to reduce image-heavy PDF files

Image optimization and downscaling reduce size while keeping text readable.

OCR and compression

Applying OCR can make scanned PDFs searchable without increasing size.

Explore the full collection of tools in the PDF Size Problems.