The PDF editor provides a complete annotation toolkit accessible from the toolbar at the top of the viewer. Text annotations support free-form typing anywhere on the page, with options for font family, size, color, and opacity.
Highlight tools include standard highlight, underline, strikethrough, and squiggly underline. Each annotation type supports custom colors and can be applied to selected text or drawn as a freeform region.
Shape tools provide rectangles, circles, lines, arrows, and polygons. All shapes support fill color, border color, border width, and opacity settings. Shapes can be resized and repositioned after placement using the selection tool.
Digital signatures can be created by drawing, typing, or uploading an image. The signature is stored locally for reuse across sessions. For formal signing workflows, the tool supports certificate-based signatures with timestamp verification.
Form filling detects interactive form fields automatically and provides type-appropriate input widgets. Checkboxes, radio buttons, dropdown menus, and text fields are all supported with full keyboard navigation.