Annotation Tools

Text annotations

Placement: Click once to drop a text box. Drag to reposition while the box is active.
Styling: Choose font sizes of 12, 14, 16, or 18 pt. Bold and italic styles use embedded Helvetica variants so they render consistently across PDF viewers.
Color: Six presets cover gray, blue, red, green, purple, and black. Use the custom color input for brand-specific palettes.
Line spacing: Each text box renders with a 1.3× line height for readability. Press Shift + Enter to insert multi-line notes.

Pen widths: Fine (2 px), medium (4 px), and bold (6 px) strokes dynamically scale with zoom to maintain accurate thickness at export.
Smoothing: Ultra PDF Editor simplifies line segments while preserving angles so signatures stay legible.
Undo: Each pointer lift counts as a single annotation. Use Cmd/Ctrl + Z to revert the last stroke.

Opacity: Highlights fill with a 35% yellow overlay to mimic traditional marker swatches while keeping text selectable.
Stacking: Highlights render in creation order. Use Clear Page to reset if overlays become dense.

Flattened output: Redactions export as opaque black rectangles. Underlying text pixels are removed in the final PDF, not just obscured.
Audit trail: Each redaction is timestamped internally so future releases can expose annotation summaries.

Annotations draw in chronological order. Adding a new highlight after text will place the highlight above the text for legibility.
Future updates will add drag-to-reorder support via the upcoming annotation panel.

Zoom to 150% for signatures and legal notes. Because all coordinates are normalized, exported annotations remain crisp regardless of zoom level.
Use keyboard navigation to flip between pages while maintaining the active tool to speed through repetitive reviews.