Annotium - Photo Annotation

Turn any photo into a clear visual explanation with Annotium.

Mark up images for site inspections, repairs, lessons, product feedback, instructions, or everyday communication. Point to what matters, add context, and share an image that is easy to understand.

ANNOTATE WITH PRECISION
• Add arrows, lines, shapes, and text
• Highlight details with spotlight and magnifier tools
• Show dimensions and angles with measurement tools
• Draw directly when a quick sketch says it best

PROTECT AND PRESENT
• Blur or pixelate private details
• Crop and combine images for clearer context
• Keep annotations organized in editable projects
• Export and share your finished work as an image or PDF

A COMPLETE VISUAL TOOLKIT
• Create lines, curves, arrows, rectangles, ovals, rounded rectangles, triangles, parallelograms, polygons, arcs, coordinate shapes, donut shapes, and freehand drawings
• Build polygons, lines, and curves with unlimited vertices
• Choose multiple arrowheads and line styles; customize width, size, color, font, dash pattern, fill pattern, and opacity
• Add plain text, comic-style callouts, pointer text, zigzag callouts, and thought text
• Use hundreds of built-in icons, insert images, and import custom fonts
• Zoom and pan at full precision, use a touch-following magnifier, and snap to common angles such as 0°, 45°, 90°, and 180°
• Work in portrait or landscape with auto-rotation and dark mode
• Create collages or stitch photos into one panorama
• Add Markdown notes to every project and reopen any project for editing
• Produce high-resolution images, export PDFs with custom templates, or share editable project files

BUILT FOR REAL WORK
Annotium helps contractors, inspectors, technicians, teachers, students, designers, support teams, and anyone who needs to explain something visually.

Take a photo. Mark the detail. Make your point clear.