Allow Copy-Paste & Right-Click Test Suite

All Tools Local PDF Studio Allow Copy-Paste Tester

Browser Security & Extension Verification

Websites often employ techniques to block right-clicking, text highlighting, clipboard copying, or pasting. Use the 16 test scenarios below to verify if your browser extensions (e.g., Allow Right Click or Enable Copy) can bypass these restrictions. Elements marked with an orange dashed border have active restrictions applied.

Method 1

Inline Handler Blocking

Right-click anywhere inside this target

Blocks right-click context menu using inline HTML event attributes: oncontextmenu="return false;" onmousedown="return false;".

Method 2

Input Context-Menu Listener

Prevents context menu on an <input> element via JavaScript addEventListener("contextmenu").

Method 3

Input Paste Event Blocking

Prevents pasting text into the input field using a JavaScript paste event listener.

Method 4

Image Right-Click Listener

Protected Graphic

Blocks right-click on an <img> element via JS contextmenu listener.

Method 5

Image Alert Popup Blocking

Protected Graphic

Triggers a window.alert() modal upon right-clicking an image and cancels the event.

Method 6

Image CSS Pointer Events

Protected Graphic

Disables mouse pointer events directly on the image element using CSS pointer-events: none.

Method 7

Overlay Mask + JS Blocking

Protected Graphic

Places a transparent <div> overlay over the image that intercepts and cancels right-click events.

Method 8

Overlay Mask + CSS Pointer

Protected Graphic

Combines a transparent overlay container with CSS pointer-events: none on the underlying image.

Method 9

SelectStart Event Blocking

Try selecting this sample text

Prevents starting text selection by intercepting and cancelling the DOM selectstart event.

Method 10

Selection Range Clearing

Try highlighting this sample text

Programmatically clears active text selections instantly using window.getSelection().removeAllRanges().

Method 11

Keyboard Hotkey Interception

Blocks keyboard shortcuts like Ctrl+C / Cmd+C by listening to keydown modifier events.

Method 12

CSS ::selection Concealment

Select this text to test highlighting

Hides visual text selection highlights using CSS ::selection { background-color: transparent; }.

Method 13

Input Field Overlay Mask

Prevents clicking, dragging, or right-clicking on an input element by covering it with a transparent overlay.

Method 14

Input Length Delta Restriction

Restricts clipboard pasting by checking input length deltas on input events and reverting multi-character pastes.

Method 15

HTML5 Canvas Overlay Protection

Renders graphics onto an HTML5 <canvas> element combined with CSS pointer-events: none and overlay masking.

Method 16

CSS Background Image Context

Displays image content as a CSS background-image property instead of an <img> tag to suppress image context menus.