The web editor at pdf4edit.com now does the full job in the browser: annotations, forms, stamps, drawing, multi-tab editing, and templates, plus AI-OCR, LaTeX, and real-scale drawing. Sign on your phone and it shows up on the computer. Glue sends files with a QR code over the same Wi-Fi, with no cable, no email, and no AirDrop lock-in. Files stay on your devices. Free.

Pdf4Edit is a PDF toolkit for phone and computer. On mobile: scan, take notes, mark up, and edit quickly. On the web: the full editor — annotations, forms, stamps, drawings, and editable PDF4 projects. Pair once, then send files phone ↔ PC over the same Wi‑Fi — fast, in-app, AirDrop-style. Your files stay on your devices. Many customised tools such us rulers, shapes for students, teachers, engineers, marketing and finance