PDF Diego

A high-accuracy PDF-to-drawing-compatible-file converter, built by an engineer-designer for engineers and designers. It removes the common quirk of converting an exported PDF back to DWG: a wide line or polyline that plots as two parallel edges instead of one, which comes back as two separate lines instead of a single line with its original width. Diego finds those doubled pairs and merges them back into a single centerline — then exports a clean DXF you can open directly in AutoCAD or any CAD software.

1. Choose a vector PDF

This only works on PDFs with real vector line work (e.g. exported/plotted from AutoCAD or similar) — not scanned or rasterized drawings. Nothing is uploaded; everything runs in your browser.

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Drop your PDF here or click to browse

2. Set the doubling gap

Only pairs of parallel lines (or concentric circles) closer together than this are treated as a doubled single line and merged. Keep this small and close to your original line weight — a large value risks merging things that were meant to be two separate lines (like the two faces of a wall).

PDF points (1 pt = 1/72 inch, at the drawing's plotted scale)

What was found

Please review before trusting this for real work: this is a geometric best-effort fix, not a certified CAD conversion. It can misfire in both directions — merging two lines that were genuinely meant to be separate (like wall faces or double borders), or missing a doubled pair that's tilted, has an inconsistent gap, or barely overlaps. Open the resulting DXF and spot-check it, especially anywhere lines look important, before relying on it.