privacy-first PDF toolkit

pdfup is a comprehensive, privacy-first PDF toolkit that operates entirely in your browser—no uploads, no sign-ups, and no data ever leaves your device. It offers a wide range of free, unlimited tools for editing, converting, organizing, securing, and optimizing PDFs, including merging, splitting, compressing, signing, adding watermarks, OCR, form filling, and much more. Built for speed and security, pdfup works offline, supports batch processing, and ensures full GDPR, CCPA, and HIPAA compliance by keeping all file processing local.