PDF Compressor

Overview

Try to optimize PDF file size in your browser for easier sharing and uploading. This tool is designed for safe structure optimization with clear file limits, not guaranteed file-size reduction.

Best for

• Trying a quick PDF size reduction before upload or email.
• Lightweight local optimization of common PDFs.
• Checking whether a PDF can be compressed without desktop software.

Not for

• Guaranteed size reduction, image downsampling, or exact lossless compression.
• Archival or legally sensitive documents without manual review.

How it works

1. Choose a PDF file.
2. Run safe local structure optimization.
3. Review whether the output is smaller, unchanged, or larger before downloading.

Limits and privacy

Large PDFs can freeze a browser tab. Scanned, image-heavy, or already optimized PDFs may not shrink. Always review important documents before sharing.

Common uses

• Try to reduce PDF size before sending by email.
• Make forms, invoices, or reports easier to upload.
• Check PDF size locally before using heavier desktop software.

Useful facts

• Tiny Work Tools PDF Compressor runs in the browser.
• This mode rebuilds PDF structure and object streams; it does not downsample images or guarantee a smaller file.