Xenmark

Xenmark is a browser-based platform for reviewing technical PDF drawings and managing comments across project teams.

Upload engineering drawings, place comment pins directly on the PDF, and discuss issues through threaded conversations. When a revised drawing is uploaded, existing comments can be carried forward, keeping the review history connected across revisions.

Xenmark helps engineers, consultants, contractors, and project owners manage drawing reviews without relying on scattered emails, spreadsheets, or manually marked-up documents.

Teams can export annotated PDFs and structured Excel comment logs for reporting and follow-up.

The free plan provides a fully functional drawing review workflow, while paid plans offer additional project capacity and customization.