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Screen marking settings

Screen marking is a security feature that displays user identification information in the form of a watermark on the browser screen to enhance data leakage prevention and accountability tracking.

Overview​

The screen marking feature allows you to set the content and design of the watermark displayed on the screen when accessing the browser. The configured screen marking will only be displayed on the screen if screen marking is activated in the conditional policy.

Main Features:

  • Display user identification information as a watermark on the screen.
  • Responsibility tracking in case of data leakage.
  • Security awareness enhancement effect
  • Include user information in screenshots/video captures

Access the SHIELDGate admin page at the following path:

  1. Admin page login
  2. In the left menuBusiness System > Security Screen SettingsClick
  3. in the top tabScreen marking settingsSelect

Preview feature​

On the right side of the settings screen,Integrated Preview AreaThis is provided:

  • Real-time reflection: All setting changes are immediately reflected in the preview.
  • Real Environment Simulation: Reproduction of a real browser environment with the Google search screen as the background
  • Check settings: You can check the screen marking effect that is identical to what the user will actually see.

Settings Item​

Select display information ⓘ​

**Selection method:**Multiple selection through checkboxes

  • Username: Display individual user's name
  • email address: Display user's email address
  • Company Name: Display company name

Selection rules:

  • Minimum selectionAt least 1 must be selected.
  • Display orderUsername → Email Address → Company Name (fixed order)
  • Separator: Selected items are separated by a space.

Display example:

사용자명만: "김철수"
이메일주소만: "chulsoo@company.com"
회사명만: "소프트캠프"
사용자명 + 이메일주소: "김철수 chulsoo@company.com"
사용자명 + 회사명: "김철수 소프트캠프"
이메일주소 + 회사명: "chulsoo@company.com 소프트캠프"
모두 선택: "김철수 chulsoo@company.com 소프트캠프"

ⓘ GuideSelect the user identification information to be displayed on the screen marking. When multiple items are selected, they will be displayed separated by spaces, and longer text may be cut off on the screen.

Font size setting ⓘ​

Setting range: 10px ~ 30px
Default value: 20px
**Adjustment Method:**Select from the dropdown menu

Effects by font size:

  • Small size (10-15px): Minimize work disruption, low readability
  • Medium size (16-24px): Balanced visibility and work efficiency
  • Large size (25-30px): High visibility, potential for work disruption

ⓘ GuideSets the size of the screen marking text. The font type is the system default font, and only the size can be adjusted. A larger size is more visible but may affect screen readability.

Angle Settings ⓘ​

Setting range:-60 degrees to 90 degrees
**Default value:**45 degrees
**Adjustment Method:**Select from the dropdown menu

Characteristics by Angle:

  • -45 degrees: Lower left diagonal
  • 0 degrees: Horizontal Marking
  • 45 degrees: Upward diagonal (most common)
  • 90 degrees: Vertical Marking

ⓘ GuideSets the tilt angle of the screen marking text. Positive values tilt clockwise, and 45 degrees is suitable for an upward diagonal display.

Spacing Settings ⓘ​

Setting range: 100px ~ 500px
Default value: 300px
**Adjustment Method:**Slider Drag

Effect by Interval:

  • Narrow spacing (100-200px): Dense watermark, strong security effect
  • Appropriate spacing (250-350px): Balanced security and readability
  • Wide gap (400-500px): Rare watermark, minimal disruption to work

ⓘ GuideSets the spacing between screen marking texts. The larger the spacing, the less frequently the screen marking is displayed, and the smaller the spacing, the more densely it is arranged.

Transparency Settings ⓘ​

Setting range: 10% ~ 100% (0.1 ~ 1.0)
Default value: 30% (0.3)
**Adjustment Method:**Slider Drag

Characteristics by Transparency:

  • Low transparency (10-30%): Subtle indication, minimal disruption to work
  • Medium transparency (40-60%): Appropriate visibility and work efficiency
  • High transparency (70-100%): Clear marking, strong security effect

ⓘ GuideAdjusts the transparency of the screen marking. The lower the value, the more transparent it is, and the higher the value, the clearer it appears. A lower transparency can reduce work interruptions.

Applying and Managing Settings​

Save Settings​

  1. Adjusting SettingsAdjust each item to the desired value in the left panel.
  2. Preview CheckCheck the actual screen effect in the right preview.
  3. Final Save: After completing all settings __PH_0__**[Application]**Button click

Application Confirmation​

Immediate application:

  • Changes to settings are reflected in the system immediately upon saving.
  • Immediately applied to newly connecting users.

Reflecting existing users:

  • Connected users: New settings will be applied when the page is refreshed.

Cautions and Limitations​

Text length limit​

Long text problem:

  • When selecting all items, the text may exceed the screen width.
  • Especially for long email addresses or company names, there is a possibility of truncation.

Solution:

  • Adjust text length by selecting only essential information.
  • Reduce the font size to display the entire text.
  • Adjust the spacing to prevent the text from overlapping.

Conditional Policy Linking​

Screen marking activation conditions:

  • Screen marking in conditional policiesActivationDisplayed only if applicable
  • When the policy is deactivated, screen marking will not be displayed regardless of the settings.