Lumen PDF Editor

什么是 Lumen PDF Editor？

Lumen — Free Online PDF Editor Edit, merge, split, sign, fill out, and annotate PDFs right in your browser. No signup, no watermarks, no installation. Just drop your PDF and start editing. Key features: edit text & images, merge/split pages, e-sign, annotate, AI assistant, PDF-to-Word conversion, form filling. Why it’s different: Zero-friction editing with a clean, fast interface and a generous free tier. Made for: students, freelancers, legal teams, and anyone who needs to fix a PDF fast.