Drop a plan PDF to measure a page.
PDF Measure
Calibrate a plan page by clicking a known length or choosing a scale such as 1/4 in = 1 ft, then measure lengths, polylines and areas. Measurements stay correct at any zoom, and export as CSV.
Good to know
- A page that has not been calibrated shows a warning, and its numbers are in PDF points.
- Printed scales can be inaccurate, and PDFs are often scaled when they are made. Calibrate against a known dimension where you can, and check the results.
- Clicks are not snapped to the drawing, so accuracy depends on where you click. Zoom in for better placement.
Your files stay on your machine
This tool runs entirely inside your browser tab. Nothing is uploaded, stored, or sent to a server — close the tab and every trace is gone.
These are the free ones — see the full suiteHow big a file can it take?
There is no upload, so there is no upload limit — but the work happens in this tab, which means your browser’s memory is the budget. Nothing here will refuse a file for being large; a big enough one simply gets slow and, eventually, reloads the tab. The figures below are rules of thumb on a desktop browser, not enforced caps. On a phone or tablet, expect a good deal less.
- One page is drawn at a time, so file size binds: comfortable to about 200 MB.
- Zooming raises the page bitmap's resolution, so a large sheet at high zoom is the heaviest moment.
Password-protected PDFs are declined whatever their size — unlock the file first. If a run does die on a long document, splitting it into volumes and working through them one at a time is the reliable way round it.