Cursor Zoom EN

Cursor Zoom is a focused accessibility and productivity extension made specifically for Google Slides on docs.google.com/presentation pages. It adds a cursor-following magnifier that enlarges the area around your pointer without changing the browser’s overall zoom level or requiring a separate zoom window. Instead of scaling the entire page, it creates a movable lens that follows your mouse and shows a magnified view of the content directly beneath and around it. This makes it useful for examining small slide details, checking interface controls, following pointer movement more precisely, and working in presentations with greater visual clarity.

The extension is intentionally narrow in scope and concentrates on one job: giving Google Slides users a live magnification tool inside the page itself. It runs automatically on supported Slides pages as a content script, so there is no separate popup, options page, account system, or external integration involved in the package description. Once active on a presentation page, it listens for keyboard shortcuts and mouse movement so you can quickly toggle the lens and change the zoom level while staying in your current workflow.

A central part of its behavior is the floating lens overlay. The lens has a large viewing area, up to 700 by 500 pixels, while still adapting if the browser window is smaller. It uses a rounded frame and a visible outline so the magnified region stands out clearly from the rest of the page. The rest of the page remains at its normal size, which helps preserve context while giving you a focused enlarged view exactly where you need it. Because the lens follows the cursor, the experience stays natural as you move across slides, menus, toolbars, and editing controls.

The package also shows that the extension uses a live page cloning approach to build the magnified view. Rather than enlarging a static screenshot once, it clones the current document body into the lens and transforms that copied content based on the mouse position and selected zoom level. This helps the magnifier reflect the current structure of the Google Slides page. To improve visual accuracy further, it includes logic to synchronize canvas elements from the original page into the cloned snapshot, which is especially important for preserving rendered content that may not transfer cleanly through cloning alone.

Keyboard control is a major part of the design. Press F4 to show or hide the magnifier. Use F8 to increase the zoom level and F9 to decrease it. The available zoom presets range from 0.5x up to 5x, with a default level of 2x. These shortcuts allow for quick adjustments during editing, reviewing, or presenting, without needing to open menus or stop what you are doing. The implementation also avoids repeated activation from holding a key down, supporting more predictable control.

The extension is built to stay responsive inside a dynamic Google Slides environment. It updates the lens as the cursor moves and repositions it when the page is scrolled or resized. It also watches for document changes so the magnified snapshot can refresh after interface updates. When the page is hidden, unloaded, or left entirely, the extension removes the overlay and resets its active behavior.

Key Features:
- Cursor-following magnifier designed specifically for Google Slides presentation pages.
- Floating lens overlay with a large view area of up to 700 × 500 pixels.
- Keyboard shortcuts for fast control: F4 to toggle, F8 to zoom in, and F9 to zoom out.
- Adjustable zoom presets from 0.5x to 5x, with 2x as the default level.
- Live page cloning inside the lens to reflect the current Google Slides interface.
- Canvas synchronization to help preserve rendered visual content in the magnified view.
- Automatic refresh and repositioning during mouse movement, scrolling, resizing, and page changes.

How It Works:
1. Open a Google Slides presentation page on docs.google.com/presentation.
2. The extension loads automatically into that page and waits for pointer movement and shortcut input.
3. Press F4 to enable the magnifier and create the floating lens overlay.
4. Move your cursor around the page and the lens follows it, enlarging the surrounding area while the rest of the page stays unchanged.
5. Press F8 to increase magnification or F9 to reduce it through the preset zoom levels.
6. As the page updates, the extension refreshes its internal snapshot and keeps the magnified content aligned with the current view.
7. Toggle the feature off or leave the page to remove the lens and clear its active observers and timers.

Privacy: - No personal data collected.