The Drafting Table That Reads Old Blueprints

Drop a blueprint (PDF / PNG / JPG), a .dwg, a .dxf, or a .hoodcad.json here

Trace

Finds thick strokes (walls), thins them to centerlines, straightens, snaps corners, then reads doors from swing arcs and windows from the lines across the jamb. Everything it finds is a candidate you accept or reject before it becomes CAD.

Auto wall stroke px Simplify px Ortho tolerance ° Deskew scan Straighten to 0°/90° Detect doors & windows Read dimension strings to set the scale (OCR)

Walls from linework

For imported DWG / DXF plans: pairs the parallel lines that draw each wall back into wall entities, reads doors from swing arcs and windows from the lines across the opening, and offers them as candidates — the same review as the tracer. Then 3D works on the imported plan.

Use Thickness to Detect doors & windows Remove the paired linework on commit

Drawing settings

Plot sheets to PDF