Smart PDF Compressor

Smart PDF Compressor — Reduce PDF File Size

Shrink large PDF documents for email attachments and web publishing without losing visual clarity. Fast, private, in-browser compression.

🔒 100% In-Browser Processing: Your files never leave your device — everything runs locally in your browser using open-source libraries. Nothing is uploaded to our server. No files are uploaded to our server — all image re-sampling happens locally.

📉

Select or Drag & Drop a PDF to Compress

Large reports, scanned packets, and presentation decks

Compression Level:

Compressing PDF...

PDF Successfully Compressed!

How Our In-Browser PDF Compression Works

Most oversized PDFs are bloated by uncompressed high-resolution digital camera photos, unneeded embedded fonts, and dead object revisions. This tool reads the PDF using PDF.js, normalizes page dimensions, dynamically re-scales embedded raster graphics according to your selected quality target, and packs the document with PDF-lib using Deflate stream compression.

Reduce PDF Size without Compromising Readability

Compress heavy reports, scanned packets, and presentation decks. Features customizable compression levels (Balanced, Maximum, Gentle) to dramatically shrink file size while preserving clear typography.