Converting legacy drawings, explained.
Straight answers to the questions architects, engineers and facility teams ask before converting paper, PDF and scanned drawings to CAD — from people who have done it since 1997.
Why PDF dimensions come out wrong in AutoCAD — and how to fix them
Imported a PDF and the dimensions don't match? Why PDFIMPORT drawings measure wrong — plot scale, fit-to-page, skewed scans — and how to fix each case.
6 min read
Vector PDF or scanned PDF? How to tell in under a minute
Three quick tests to tell a vector PDF from a scanned raster PDF — and why it decides how your drawings are converted to CAD and what it costs.
4 min read
How to convert old blueprints to CAD: a practical guide
Converting blueprints, mylars, vellum or sepia prints to AutoCAD: how to scan them, what to send a conversion firm, and what you should get back.
7 min read
Automated raster-to-vector software vs manual redrafting
When automatic raster-to-vector conversion is good enough, when it isn't, and why drawings you'll build from usually need human redrafting.
5 min read
Digitizing a facility's drawing archive: where to start
A practical plan for hospitals, universities and agencies converting decades of paper, microfilm and aperture-card drawings into usable CAD.
7 min read
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