Short notes about this converter and viewer: what the export gate checks, why a drawing can open for viewing yet refuse a raster PDF, and what to repair — and where.
Viewing renders loosely; a raster PDF has to stand alone on the sheet. What the export gate requires — every drawable entity counted as drawn, no engine-reported missing fonts, images or xrefs — and why that is not a certification of every DWG version.
The guides describe the tools on this site: theDWG and DXF to PDF converter and theCAD viewer. Both use the same engine and the same fail-closed export gate, and both run entirely in your browser.
