What should be checked before conversion?
Record the drawing number, revision, issue purpose and source. Then inspect whether geometry and text are vectors, whether images are scans and whether dimensions or control points are available.
| Check | Question | Action |
|---|---|---|
| Content | Vector, raster or mixed? | Choose import or redraw |
| Scale | Is a control dimension available? | Record source |
| Text | Is text selectable and legible? | Check OCR or redraw |
| Revision | Is the issue current? | Confirm register |
| Completeness | Are sheets and notes present? | Flag missing files |
Sources: Autodesk: PDF Import in AutoCAD results in low quality data, Autodesk: Import PDF Dialog Box
Why can import quality vary?
PDF export settings, line weights, embedded fonts, raster content and overlapping geometry can affect the result. Autodesk documents limitations and import controls, so the imported file still needs comparison with the source.
Sources: Autodesk: PDF Import in AutoCAD results in low quality data, Autodesk: Import PDF Dialog Box
What is the acceptance check?
Compare geometry, text, symbols, scale, layer treatment, title block, revision and plot output. Keep the source PDF with the review record.
Common questions
What else should the bid team know?
Does PDF to DWG conversion prove the drawing is accurate?
No. Geometry, text, scale, layers, revisions and design intent need human comparison against the approved source.
Can a raster scan become editable CAD geometry automatically?
No. A raster image is a redraw reference. The resulting geometry must be recreated and checked.
Who approves a converted drawing for construction?
The responsible project engineer and document control team approve the design and issue status. A conversion service does not provide engineering sign-off.
Primary sources
- PDF Import in AutoCAD results in low quality dataAutodesk
- Import PDF Dialog BoxAutodesk
- About the United States National CAD StandardNational Institute of Building Sciences
- National CAD Standard contentNational Institute of Building Sciences