Most corporate email providers enforce file attachment limits between 10 MB and 25 MB. High-resolution document scans and presentation decks frequently exceed these boundaries, which forces users to upload files to public links or risk bounced deliveries.
PDF compression handles content across two distinct layers: vector stream objects (fonts, outlines) and raster bitmap objects (embedded photos). Effective reduction balances visual clarity with data size reduction.
Avoid unknown public servers that ask you to drop sensitive tax receipts onto third-party systems. Local browser tools preserve document confidentiality and reduce bytes directly on your computer hardware.
Free, fast, and completely in-browser.