PDF utility

Scan PDF Optimizer

Rebuild scanned PDFs as compact image-based PDFs.

PDF workflow

Choose the scanned document to optimize.

Upload file

Choose a file to process.

PDF workflow

Higher scale = sharper, lower quality = smaller file.

Render scale

Typical 1.1–1.6. Higher means larger output.

JPEG quality

Typical 0.65–0.85. Lower = smaller file.

Best for scans, receipts, and camera-shot documents.

Frequently asked questions

What does the scan optimizer do?

It reduces the file size of scanned PDFs by applying image compression and deskewing, while keeping the content readable.

Is my PDF uploaded?

No. Optimization runs securely in your browser without uploading.

How to optimize a scanned PDF online for free

Compress and clean up scanned PDF files securely in your browser without uploading.

  1. Upload your scanned PDF Click or drag and drop the scanned PDF.
  2. Optimize Click Optimize. The tool compresses images inside the PDF.
  3. Download Download the smaller, optimized PDF.
Related hubOpen PDF hub

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