To convert a PDF to DWG, open the CADdillo editor (free account, no card), choose File ▸ Import PDF…, pick the page, set the scale with two known points, then File ▸ Export DWG (r2000). A vector PDF comes back as editable lines and text on layers; a scanned PDF comes in as a locked underlay to trace over.
Extract real vector geometry from a PDF drawing, calibrate it to true scale, and write a native r2000 DWG. Straight about what a PDF can give back — and about what was destroyed the moment it was plotted.
| What you get | Export | |
|---|---|---|
| Vector PDF (plotted from CAD) | Lines, polylines and text at true coordinates, on layers rebuilt from stroke colour and weight | DWG r2000 (AC1015) or DXF |
| Scanned PDF (a picture of paper) | A locked underlay you calibrate and trace over; nothing is vectorised | DWG or DXF of what you trace; the underlay stays out |
Import reads up to 200,000 objects per page and asks first above 50,000. DWG export writes up to 100,000 entities; above that it is refused and DXF is offered. A free account includes 3 DWG exports, and any credit pack makes DWG export unlimited; DXF export is always free and unmetered.
Checked against the converter on .
This is the most oversold conversion on the internet, so here is the plain version. Extraction is genuinely useful and will save you hours. It is not time travel, and anyone selling it as such is selling something else.
Nearly every PDF-to-DWG job comes down to the same situation: the drawing exists, the CAD file does not, and redrawing it from scratch is hours of work you should not have to repeat.
The single most common reason anyone searches this. You need to build on their drawing, and a PDF is what you were given — extracting the geometry beats redrawing the whole sheet by hand.
Older buildings frequently have a drawer of printed sheets and no live CAD anywhere. Getting them back into DWG is the first step of any renovation package.
Plan reviewers mark up PDFs. Making the revisions properly means getting back to editable geometry rather than annotating the plot.
If the recipient works in DWG, delivering DWG avoids a conversation about formats entirely — even though the DXF carries the same geometry.
Same extraction, free export, no export limits.
The reverse trip — plot a drawing to a print-ready sheet.
Already extracted? Go straight to the DWG write path.
Your PDF is really a pile of scans? imageinseconds.com turns a set of images into one multi-page PDF in the browser, free, with no upload.
Open app.caddillo.com, choose File ▸ Import PDF, pick your page, calibrate the scale against a known dimension, then choose File ▸ Export DWG. Extraction and editing happen entirely in your browser; only the final DWG write goes through CADdillo’s converter, because binary DWG cannot be written client-side. The editor needs a free account with no card; it includes 3 DWG exports, and DXF export is always free.
You will get the geometry back. You will not get the drawing back, and the difference matters. Plotting to PDF is one-way: it discards layer names, block definitions, associative dimensions and everything else that made it a CAD model, keeping only the marks needed to draw the page. What extraction recovers is accurate linework and text at correct coordinates — a very good starting point that saves hours of redrawing. What it cannot recover is structure that no longer exists in the file. Any service promising your original drawing back is promising something physically impossible.
Not as geometry. A scan contains pixels, not lines, and no amount of processing turns a photograph of a wall into a wall entity — image tracing produces thousands of jagged approximate segments that are usually worse than useless for editing. CADdillo instead imports the scan as a locked background underlay that you calibrate to the correct scale with two known points, so you can trace it with real drafting tools and finish with geometry you can actually trust. That is more work than a button, and it is the honest answer.
For a vector PDF, the coordinates are read directly from the file rather than measured off an image, so accuracy is limited mainly by your calibration and by curve flattening. Calibrate across the longest dimension you can identify — a small clicking error over a long span is a much smaller percentage error than the same slip over a short one. After importing, spot-check a second known dimension somewhere else on the sheet; if it reads correctly, the whole drawing is right.
Usually, yes. DXF export is free, unmetered, has no fidelity boundary to trip, and opens natively in every AutoCAD and every major CAD package. Choose DWG when the receiving end genuinely requires it — a DWG-only intake rule or an established pipeline. Both files carry identical geometry; the difference is entirely about what the other party will accept.
r2000 (AC1015), which every AutoCAD from 2000 onward opens along with BricsCAD, DraftSight and ZWCAD. It is the version that writes reliably — newer DWG write support in the available encoder is incomplete and risks subtle corruption, which is far worse than an older version number. If a drawing exceeds the encoder’s entity ceiling, the conversion is refused with an explanation and you export DXF instead. A refused conversion does not consume an export from your free quota.
