Privacy-first PDF suite
PDF tools that feel as capable as Acrobat — free in your browser
Merge, split, compress, convert, sign, and organize PDFs with a focused interface. Everything runs locally when possible — no server uploads for those tools, no file storage, no account required to get started.
- No uploads required (runs locally)
- No subscriptions hidden
- No watermarks
- Free tools, no tricks
Tools
Everything you need for PDFs
Pick a tool below — most run locally in your browser for privacy.
Combine files into one polished document.
From the blog
Tips & updates
Apr 7, 2026
Reduce PDF Size to 1MB for Email Attachments (Fast & Free)
Get PDFs under a 1 MB attachment ceiling for picky inboxes—target-size compression, trims, and privacy-first processing with PDFZen in your browser.
Apr 5, 2026
Compress PDF to 500KB for Easy Sharing (Quick and Simple Guide)
Get under a 500KB limit for email, forms, and chat—trim pages, optimize images at 120–150 DPI, compress in one or two passes, and share from your device with PDFZen.
Apr 4, 2026
Compress PDF to 300KB Quickly (Step-by-Step Guide That Keeps Quality Intact)
Stay under a 300KB upload limit fast—trim pages, tame images at 100–150 DPI, compress in stages, strip hidden data, and use a local-first tool like PDFZen when privacy matters.