DraftLayer

DraftLayer is a browser-based PDF markup tool for architects, engineers, contractors, and consultants. Review drawings, plans, and technical documents with CAD-style lines, shapes, revision clouds, highlights, text, leader lines, and callouts. Calibrate dimensions in px, mm, cm, in, or pt, then use nine OSNAP modes and PDF vector geometry snapping to place markups precisely. Reusable dynamic stamps speed up recurring reviews. Create title-block, RFI, inspection, approval, and revision stamps with fillable text, number, date, dropdown, checkbox, and radio fields. Layers offer visibility and lock controls to keep annotations organized. Teams can edit the same drawing with live cursors, presence, autosave, and conflict-free sync. Version history captures recoverable revisions with authors and timestamps for audit trails and rollback. DraftLayer also includes multi-page editing, tabs, vector PDF export, printing, share links, offline PWA and touch support, plus undo/redo history.