Straight answers about Redliner.
Redliner is a focused drawing layer for construction PDFs: markup, takeoff, scale detection, revision review, RFIs, exports, and integration-friendly workflows.
Product questions
What is Redliner?
Redliner is browser-first construction PDF software for drawings, markups, takeoffs, AI-assisted scale detection, drawing revision comparison, and drawing-centered workflows like RFIs, tasks, photos, documents, and project poster links.
Is Redliner a full project management system?
No. Redliner is intentionally drawings-first. Use it for sheet sets, markups, measurements, revision review, and drawing context. Use BuildTools, Procore, or another system of record for full project operations if needed.
Drawings questions
What file types does Redliner support?
Redliner is built around construction PDFs and large drawing sheet sets. The viewer is tuned for high zoom, page references, annotations, and exportable markup workflows.
Can Redliner handle drawing revisions?
Yes. Redliner keeps old sets available while making the current set clear, so teams can compare revisions, preserve audit context, and avoid accidentally marking up superseded sheets.
Markup questions
What markup tools are available?
Redliner supports common construction markup workflows: select, line and polyline notes, area and polygon markups, counts, measurements, clouds, callouts, text, highlights, and fast stamps like REVIEWED, ISSUED FOR CONSTRUCTION, and DO NOT BUILD.
Takeoff questions
Does Redliner support takeoffs?
Yes. Redliner supports area, linear, and count takeoffs with page references, categories, legends, scale calibration, and exports so quantities can be traced back to the sheet that produced them.
How does scale work?
Set or verify scale before relying on measurements. Redliner can assist with scale detection, but users should review the suggestion and manually calibrate from a known dimension when precision matters.
AI questions
Does AI replace human review?
No. AI-assisted features help detect scale, extract sheet metadata, compare versions, and point users toward likely changes. The estimator, PM, architect, or builder still decides what matters.
RFIs questions
Can I create RFIs from drawings?
Yes. Drawing markups can carry RFI context with page reference, coordinates, thumbnail, assignment, due date, threaded responses, and exportable numbering.
Field questions
Can field teams use Redliner?
Yes. Redliner is browser-first and designed for drawing access, field notes, photos, task context, project poster QR links, and markup workflows without desktop PDF software.
Exports questions
Can I export marked-up drawings and quantities?
Yes. Redliner is designed around PDF and quantity exports: marked-up sheets, takeoff summaries, CSV-style quantity output, and page-referenced documentation.
Integrations questions
Does Redliner integrate with other construction tools?
Redliner is designed to sit beside storage, estimating, and project-management systems. API, SDK, embed, and MCP/Claude Connector workflows are part of the integration direction for teams that need drawing intelligence inside another tool.
Pricing questions
How is Redliner priced?
The marketing site lists a free viewer direction and pro editor pricing starting at $29 per editor per month with a 7-day free trial. Enterprise/API workflows are scoped with the Redliner team.
Support questions
Where do I get help?
Use the private help page if you have the link, or contact hello@redliner.com with the project name, sheet number, browser, and a short description of what happened.