AI drawing conversion platform / Intelligence, into the drawing.
The hours that used to disappear into tracing go back into design. Upload a drawing PDF. CADROH, our AI drawing conversion tool, reads it and rebuilds it as CAD data (DXF) that holds up as a drawing, with text, dimensions, and structure in place.
SELF-CHECK — the drawing checks its own numbers
Add up the individual dimensions and the total should match the overall dimension written on the drawing. CADROH runs that check automatically on every dimension chain.
Problem
Conventional auto-conversion copies every bit of ink on the drawing as a line. The file opens, but you can't edit it. Text shatters into hundreds of short line segments, and dimensions become nothing but lines and scattered numbers. In the end, someone has to sit down with the original and redraw it.
How It Works
PDFs exported from CAD, scanned drawings, blueprints, and handwritten sketches. Drawings this different don't respond to the same conversion. CADROH identifies what kind of drawing it is at upload and picks the method that fits it. We have tested it on real drawings, from a handwritten 1972 blueprint to freehand sketches from the field.
Structural lines come back as lines, text as text, and hatching as fill. Dimensions come back with the relationship intact among the dimension lines drawn on the sheet, the dimension values, and the overall dimension. The DXF we deliver is not a picture. It is a drawing you can start editing right away, and Japanese text does not come out garbled.
Add up the individual dimensions and the total should match the overall dimension written on the drawing. CADROH runs that check automatically on every dimension chain and delivers as confirmed only the dimensions the drawing's own arithmetic backs up. No external ground truth, no manual cross-checking. The drawing itself is what the self-check runs against.
Quality Principle
The costliest error in a conversion is the one that looks plausible. Our quality standard is not an accuracy rate. What the self-check could not confirm, CADROH does not drop and does not hide. It goes out with a red “Needs review” flag.
Evidence
CADROH's quality is not a matter of a conversion happening to turn out well. We built verification into the product itself, and every conversion result is confirmed by multiple independent methods before we deliver it.
People who work with drawings every day make the call without being told which method produced the output. Anything the review finds needs correcting does not go out as confirmed.
Every dimension chain in a drawing we deliver is checked automatically against the overall dimensions written on the drawing itself. A number that fails the check does not go out as confirmed.
We run simulations that reproduce the ways a read can go wrong, and at the design stage we close off the paths by which an error could slip through unflagged.
What we build up is our verification methods and the records behind them. Not your drawings. Improvement runs on that in-house asset.
Note: We verify on real drawings—CAD output, scans, blueprints, and hand-drawn sketches. Both the methods and the results can be reproduced from the records.
Data Handling
A drawing is the design itself, and not something you want leaving your company. We built CADROH on that premise. What we accumulate to improve quality is our own verification methods and the records behind them, not the drawings you send us.
We process the drawings you upload for one purpose only: to produce your DXF. We do not use them for anything else.
We do not use your drawings as material to train or improve AI models. We improve conversion quality through our own accumulated verification work, not through your data.
What CADROH builds up as an asset is a record of our verification procedures, the methods that worked, and the methods that did not. Building a database of drawings is not the goal.
Comparison
| Simple tracing conversion | CADROH | |
|---|---|---|
| What you get | A set of lines (a picture) | Editable CAD data |
| Text | Broken into lines or garbled | Delivered as Japanese text |
| Dimensions | Lines and numbers left unlinked | Rebuilt as dimension lines and checked against the drawing itself |
| How errors are handled | Errors slip in unflagged | Marked as checked or flagged for review |
| Handwritten and old drawings | Struggles | Method selected automatically to fit the drawing |
| Checking after conversion | You end up rechecking every drawing | Only the areas flagged in red |
FAQ