From PDFs, images, and drawings to Revit

1. Bring your PDFs, images, and drawings

Give your agent any combination of:

• PDFs of plans, sketches, or proposed changes.
• Site photos and images of hand drawings.
• Measurements and notes, including units, lengths, and ceiling or building heights.

For a building with no drawings, start with photos and rough measurements. Include known lengths to establish scale and label which rooms or sides appear in the photos. Identify approximate measurements so they remain visible as estimates. The agent can ask for missing dimensions as it works.

Marked PDFs or images can describe proposed changes. Bluebeam is one way to make those markups; use whichever tool you already work with. Confirm the notes are visible and readable. If your agent cannot read a PDF, supply images of its pages instead.

2. Have the agent model it with AgentCAD

Add the files to your agent's project and describe what you want. For example:

Use AgentCAD to create a 3D model of this building from the supplied PDFs,
photos, drawings, measurements, and notes. Prepare it for use in Revit.

Review the inputs and identify missing or conflicting dimensions. Ask me for
information needed to resolve important gaps, and identify any estimates.
Use known dimensions to establish scale and keep the model's origin and
orientation consistent.

Create the existing building first. Show me a preview and check key lengths,
heights, and opening locations against the inputs. Give me a STEP file to test
in Revit before we expand the model.

Once I accept the existing model, apply the proposed changes shown in my
marked PDFs or images. Confirm the changes you intend to make, then check
that they are correct and that retained components stay unchanged.

Deliver the checked existing and proposed STEP files, previews, measurements,
and remaining assumptions. Keep the model source so we can revise it later.

Review the preview against your inputs. Ask for corrections in plain language, with a marked PDF, or with an annotated image. The agent revises the model and checks its dimensions and the changes between versions.

Start with a small, recognizable area and try its STEP file in Revit. Once its scale, position, and geometry work for you, continue with the rest of the building.

3. Bring the 3D files into Revit

Use the checked STEP files the agent delivers. Revit 2024.2 supports direct STEP import; Revit 2025 and later also support STEP linking. Older installations need an update or an external format conversion. See Autodesk's STEP support guidance.

1. Open a test Revit project and choose Insert → Import CAD → STEP Files.
2. Select the delivered file and choose the appropriate category and positioning.
3. Check a known length, height, and location, then inspect plan, section, and 3D views.
4. Confirm the imported model supports the project tasks you need before continuing.

See Autodesk's import procedure. If components need different Revit categories, ask the agent to generate separate STEP files with the same origin and orientation.

For a custom Revit family

Use the same steps with a component sketch, reference images, and dimensions. Import the resulting STEP into a Revit family, finish its required properties, save the RFA, and load it into a test project. A family whose geometry flexes with Revit parameters requires additional Revit authoring. AgentCAD currently delivers STEP geometry rather than native RFA or RVT files.