How to insert an image into CAD

4 August 2026 · two different jobs hide behind this search

“Insert image into CAD” means one of two things, and they need different tools. If you want the picture visible in the drawing — a reference to trace over, a logo on a title block — you want an underlay, and the command is ATTACH. If you want the picture to become geometry — countable holes, measurable outlines, a file a cutter can run — no insert command does that; you want conversion.

The one-question test

Will a machine or a measurement ever touch it? No — insert it. Yes — convert it. An inserted image is pixels forever: AutoCAD will happily display it, and CAM will ignore it completely.

Route A — Insert as an underlay (AutoCAD)

1. ATTACH (or Insert ribbon → References → Attach), choose the PNG/JPG/TIFF. Prefer Attach over drag-drop or OLE paste: attached references keep a path and behave when files move.
2. Scale against a known dimension. Draw a line of a true length from the drawing (say a 100 mm edge), then SCALE the image with the Reference option until the picture's edge matches the line.
3. Fade it (IMAGEADJUST, fade ~50%) so your linework reads on top, and put the image on its own locked layer.
4. Trace real geometry over it. Lines, arcs, circles — yours, exact, on proper layers. The image guides; your entities are the drawing.

Two habits save later grief: keep the image file next to the DWG (or bind it) so the reference does not break on another machine, and never dimension the image itself — dimension your traced geometry.

Route B — Convert to real geometry

When the point is the geometry itself, tracing by hand is Route A with extra steps. The image to CAD converter reads the part — outline, holes, patterns — asks for one true dimension, and returns a DXF whose size and hole diameters are measured from the output before you download. In our measured test it recognized 18 of 18 features across clean renders where a pixel tracer returned zero circle entities. Free, no signup; open the DXF in AutoCAD and it is entities from the first click, with DWG one SAVEAS away.

Same fork, other software

• FreeCAD: Image workbench → attach the image to a plane as reference; convert externally when geometry is the goal.
• Fusion: Insert → Canvas, calibrate against a known length, sketch over it. Canvases never become bodies — conversion is still a separate act.
• LibreCAD/QCAD: insert image for reference; both open the converter's DXF directly for the geometry route.