Curtain MonGuard FAQ

Curtain MonGuard is screen watermark software for Windows and macOS. Administrators can show a watermark on user computers with fixed text, computer name, date and time, plus user name and IP address in the paid edition. It deters unauthorized capture and sharing and, if an image leaks, helps narrow the investigation.

No. Screen watermarks deter misuse and help with tracing. They cannot stop every photo or screenshot, and they do not guarantee that the source of a leaked image can be identified. Use them alongside other data security measures.

Yes. Clients show screen watermarks on Windows and macOS. Application watermark: currently confirmed on Windows; public information for macOS currently confirms the full-screen watermark only. The admin server runs on Windows.

The free version includes screen watermarks (fixed text, date and time, computer name), full-screen watermark, application watermark (currently confirmed on Windows), conditional display, Active Directory integration, self-protection and central management. User name and IP address watermarks, the uninstall password and other features are in the paid edition.

Yes. Both the free and paid editions may be used commercially.

The free version can be used straight away to evaluate basic screen watermarks and central management. A trial of the paid edition is for evaluating paid features such as user name and IP address watermarks and advanced management. Trial arrangements, duration and any fees are confirmed by the sales team.

The paid edition reference price is US$10.12 per PC per year, billed annually; US$19.23 for 2 years and US$27.32 for 3 years (about 5% and 10% off). Bundles of Curtain MonGuard with LogTrace or with PrintTrail are priced separately on the pricing page. It is taken from the supplier’s public information (checked 10 November 2026). The minimum order is 5 PCs; the final quotation, applicable edition and discounts are confirmed by the sales team.

You can set a high-transparency watermark, up to 98% transparent, which is barely visible in daily use. If an image leaks, image adjustment may reveal the watermark details. Watermark recognition depends on the settings, capture clarity and any later image processing; we recommend evaluating it in your actual environment. The dot matrix watermark is a separate technique listed as a paid feature; its availability is confirmed by the sales team.

The basic MonGuard screen watermark does not block screenshots. Screenshot blocking belongs to a separate add-on module (Screen Capture Prevention), whose availability, editions and platforms are not yet confirmed. Screen watermarks mainly deter misuse and help with tracing; if you need screenshot blocking, ask about the module and its scope when you apply.

The product information states that dual and multi-monitor setups are supported, with the watermark shown on all displays.

The product information states that the software runs in the background with low CPU and memory use. The actual impact depends on your environment, so evaluate it with the free version first.

After you apply, the sales team contacts you to confirm the edition and platforms you need, then provides the download and installation details as agreed.

Screenshot Watermark collects the request and passes it to the designated sales team, who review it and follow up on download details, trial arrangements, technical questions and quotations.