Construction markup, not generic PDF notes
Callouts, clouds, stamps, calibrated measurement, and symbol counts: the tools a drawing markup workflow needs, tuned for touch and stylus on iPad.
iPad PDF markup
PDF Markup App for iPad, Built for Construction
Mark up construction PDFs on the iPad with an Apple Pencil: ContractorCounter runs in the browser with calibrated measurement and counts, so it is a markup tool that understands drawings, not a generic PDF annotator.
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Saving, exporting, and bill-of-quantities persist once you start your free trial
- Apple Pencil markup on iPad
- Calibrated measurement + counts
- Add to home screen, full-screen
- Same drawing on iPad and desktop
Scale-aware on a tablet
Calibrate the drawing once and measure lengths and areas to scale from the iPad, something general PDF apps on tablets cannot do.
Field-to-office on one drawing
Mark up on the iPad on site, then reopen the same plan on the desktop. It is the same browser workspace, so nothing has to be re-imported.
Common questions
Short answers for contractors
Can I measure to scale on the iPad, not just annotate?
Yes, and that is the difference from a generic PDF app. Calibrate the drawing's scale once and ContractorCounter measures lengths and areas and tracks counts against it, on the iPad, in the browser. Start with a 14-day free trial; Pro is US$14/month.
Is ContractorCounter only for estimating?
ContractorCounter is focused on drawing markup, PDF annotation, calibrated measurement, counts, stamps, comments, and clean exports. Estimating can happen after the markup work is clear.
Does it work in the browser?
Yes: ContractorCounter is fully browser-based, which means it runs on Windows, macOS, and iPad without an installer, a Windows-only desktop dependency, or a virtual-machine workaround for Mac users. Upload PDF or image drawings, calibrate the scale once per sheet, and the full markup, measurement, and counting workflow runs in the tab, at the desk or on site. Because the workspace lives in the browser, the same drawing opens identically on every machine, so the office and the field are always looking at the same markups without anyone syncing files or matching software versions. If your team has been locked out of desktop-first tools on Mac or iPad, this is the structural difference to test first.