Bluebeam Markup to DXF

The DXF contains only the PDF's annotation objects (the markup layer) - the base drawing content is never read or exported. Markups that were flattened into the drawing in Bluebeam are no longer annotations and cannot be recovered. Export is in sheet millimetres unless you choose calibrated units; calibrated export uses each markup's own Bluebeam measurement calibration, writes one DXF per page per drawing scale and keeps uncalibrated pages and markups in sheet millimetres - every file name ends in its units (_mm, _1-100_m) and the manifest.json lists the units and scale of each file. Always verify scaled dimensions against the issued documentation before using them. Your PDF is processed in memory and never stored; the extracted markups are cached for up to 30 minutes so you can export them, then deleted. We keep a log of the file name and markup counts. © 2026 LayeredGeo Pty Ltd.

The DXF is set up so the markups drop back onto the source DWG in the same spot they were drawn. There are two ways in, depending on whether you want them on the sheet or in the model.

On the sheet (paper space) - exact overlay

Export in sheet millimetres (the default). The DXF uses the PDF page's own frame: origin at the bottom-left corner of the sheet, millimetres, y up - the same frame as an AutoCAD layout. In the source DWG, open the layout tab and XATTACH (or INSERT) the DXF at 0,0, scale 1, rotation 0. Every cloud, callout and note lands where it sat on the printed page - over the viewport, title block, everywhere.

Half-size plots: if the PDF was printed smaller than the title block (an A1 drawing plotted to an A3 PDF is common), insert at the ratio instead - scale 2 for A1-to-A3. In general the scale factor is the layout sheet size divided by the PDF page size; the page size is shown against each page in the table above.

In the model (model space) - one snap away

When the file carries a Bluebeam measurement calibration, switch the units to calibrated before exporting. The markups come out at true model-space size (metres at the drawing scale), so alignment reduces to a single MOVE: pick any markup vertex drawn over a recognisable feature - a measurement endpoint on a kerb, a callout arrowhead on a pit - and snap it to that feature in the model. If the plot was rotated or you want a check on the scale, ALIGN with two point pairs does translation, rotation and scale in one command. A sheet with several calibrated viewports (a 1:500 plan beside a 1:100 section, say) exports one DXF per scale, since each is its own model-space frame.

Markups keep their own layers, so the whole review can be frozen or thawed in one go, and every entity carries its subject, author, page and comment as XDATA (visible with LIST).