ruler guide

A ruler guide is a visual tool used in design and editing software to help align and measure elements accurately within a project. It appears as a non-printing line that you can drag from the rulers on the edges of the workspace to mark specific positions. These guides assist in ensuring consistent placement, spacing, and alignment of objects or text, making the layout cleaner and more professional. They are adjustable and can be moved or removed as needed, serving as temporary reference points during the creative process.