Documentation

Forms Toolbar

Add interactive PDF form fields — checkboxes, dropdowns, text inputs, and signature fields — to construction documents.

Forms Toolbar

Place interactive form field annotations on PDF pages. Enable via View → Toolbars → Forms.

Design Mode

Enable Design Mode in the toolbar before placing fields. In Design Mode, clicking a field type activates it, then a single click on the canvas places the field at a standard size. Fields are placed at fixed dimensions suited to their type — no click-drag required.

Fill Mode

Enable Fill Mode to interact with existing form fields on the PDF canvas. In Fill Mode, clicking a field activates it for data entry — type into text fields, tick checkboxes, select radio options, or choose dropdown values. Use Fill Mode when reviewing completed forms or filling in field annotations created in Design Mode.

Field Types and Dimensions

Key / Control	Action
Text Field	160 × 26 px — single-line text input with blue border and light blue fill
Checkbox	18 × 18 px — square tick box with blue border
Radio Button	18 × 18 px — circle for mutually exclusive option groups
Dropdown	160 × 26 px — select field with chevron indicator
Signature	200 × 52 px — dashed-border signature capture area

Placing Fields

Enable Design Mode using the toggle button
Click a field type button (Text, Checkbox, Radio, Dropdown, or Signature)
Click once on the PDF canvas at the desired location — the field appears immediately
Use the selection handles to move or resize the placed field
Press Delete or Backspace to remove a selected field

Field Behavior

Each field is placed as a grouped markup object consisting of a background rectangle and a label indicator. Fields are saved to the markup database and are visible at any zoom level. They appear as visual indicators on the PDF — useful for annotating where reviewers should fill in information or sign.

Tip: Form fields are markup objects in LocusBIM. They mark the location and type of a required field on the drawing. Toggle between Design Mode and Fill Mode using the respective buttons in the toolbar.