Compress PDF

A 10-page scanned contract lands in your inbox at 24 MB — too big for your email provider’s 20 MB attachment limit. You drop it into the compressor: the tool re-renders each page image at a sensible resolution and re-encodes with efficient compression. Thirty seconds later the file is 3.1 MB, the text is still perfectly readable on screen, and it attaches to your email without complaint.

For print-critical documents choose the lighter compression preset: the file lands around 8 MB instead of 3 MB, but fine print and signatures stay razor sharp on paper. Either way the original stays untouched on your device — download the compressed copy, compare side by side, and only send what looks good to you.

Compression trades pixels for bytes, and there is no free lunch: heavy compression on scanned pages softens fine detail. If the PDF is headed to a print shop or a court filing with strict quality rules, use the lightest setting and verify the output at 100% zoom before sending.

Already-optimized PDFs barely shrink — a digitally-generated 200 KB invoice will not become 50 KB no matter the setting, because there is no image fat to trim. And password-protected PDFs cannot be processed in the browser at all; remove the password in your PDF reader first, then compress.