Built by people who actually review drawings for a living

PDFDepth started the way most useful tools do: someone got tired of doing the same slow thing every day. Measuring plans with a desktop suite that needed a license dongle. Emailing marked-up PDFs back and forth. Re-counting the same symbols on sheet 40 that were already counted on sheet 12.

The result is a browser-native workspace for the documents that run construction, engineering, and business: calibrated measurement and takeoff, AI-assisted plan review with cited findings, markup that snaps to linework, drawing comparison, Smart Forms and certificate signatures, a CAD command line with DXF export, and tracked sharing — all on the same file, on any device, with nothing to install.

Our technical methodology and engineering-related functionality are developed with input and review from qualified engineering professionals and professional architects.

Our articles are held to the same standard as the product: technical claims are verified against the live application before publication, and engineering content is reviewed for technical accuracy by licensed professional engineers. You can read exactly how that process works on How We Build & Review Our Content.

The workspace itself is live and open — every workflow described on this site can be tried in the live PDFDepth app with a free 14-day trial, no install, no credit card.