PicoPDF compresses any PDF to under 20 MB so you can email it, entirely in your browser. No uploads. No servers. No sign-up. Your files never leave your device. Most PDF compressors upload your files, require an account, or paywall you after 2 files. PicoPDF skips all of that. → 100% client-side — safe for confidential files → Ghostscript WASM — text, fonts, vectors stay intact → Auto-quality — best quality under 20 MB → Batch support — multiple PDFs, download as ZIP → Free forever, no limits

Customer.io — Automate Messaging Everywhere — Startups Get 12 Months Free

Automate Messaging Everywhere — Startups Get 12 Months Free

Hey Product Hunt! 👋 I built PicoPDF because I was the person in the office everyone came to when their PDFs were too big to email. “Hey can you shrink this?” “This proposal won’t attach.” “The client needs this under 20 MB.” It happened so often I figured — why not build something dead simple anyone can use? No downloading sketchy software, no uploading confidential contracts to some random website, no creating yet another account. The compression engine uses Ghostscript compiled to WebAssembly, so it runs entirely in your browser. Your files literally never leave your device. Text stays selectable, fonts stay sharp, vectors stay clean… it’s not just converting pages to blurry JPEGs like most online tools. Drop a PDF, get a smaller one, done. Would love to hear what you think, and if you’ve ever been the “PDF person” at your office, I feel you 😄

Customer.io — Automate Messaging Everywhere — Startups Get 12 Months Free

Automate Messaging Everywhere — Startups Get 12 Months Free

PicoPDF

Shrink PDFs for email. Free, private, runs in your browser.

Shrink PDFs for email. Free, private, runs in your browser.