Hey Product Hunt! 👋 I'm Nereo, maker of PDFBlack. Like many of you, I frequently had to manipulate sensitive documents: invoices, legal contracts, tax forms, and IDs. Every popular tool out there asks you to upload your confidential files to their remote cloud servers. Even if they promise to delete them later, your private data has already crossed the network. I built PDFBlack (https://pdf-black.com) to solve this once and for all: - 🛡️ 100% Client-Side Processing: Powered by modern Web Workers and WebAssembly. Your files never leave your computer's RAM. - ⚡ Zero Cloud Latency: No uploading or downloading wait times. Instant page previews and processing. - ⚖️ Legal & Pro Tools: Bates numbering / pagination (foliado) designed for legal briefs and court filings, smart non-destructive compression, visual page reordering, and ink-saving grayscale conversion. - 🔓 No Paywalls, No Limits: Completely free, open-source, and requiring no sign-up or cookies. We are live at https://pdf-black.com and the code is open on GitHub (https://github.com/nereoab/pdf-l...). I'd love to hear your thoughts, feedback, or any local PDF tool you'd like to see next! 🚀

PDFBlack

Zero-knowledge, 100% local in-browser PDF suite

Zero-knowledge, 100% local in-browser PDF suite