ToolkitBook
Protect your passport copies before sharing them online. Input your custom text, adjust the size and color, and set the opacity for perfect visibility. Choose a single centered watermark or a tiled pattern for maximum security. Watch the preview update in real-time and download your protected file instantly. Your data never leaves your computer.
Drag and drop your passport image here
or click to browse
Drag and drop your passport image into the upload area or click to browse your files. The tool supports JPG, PNG, and WebP formats. Once loaded, a preview watermark will appear. Adjust the text, size, color, opacity, and pattern until you are satisfied with the result, then click the download button.
Common choices include "CONFIDENTIAL," "COPY," or "FOR VERIFICATION ONLY." You may also want to include your name, the current date, or the name of the organization requesting the document. Clear text helps identify the intended recipient and discourages unauthorized use.
A Horizontal layout places watermarks in straight rows and columns (a standard grid). The Diagonal layout runs the text at a 45-degree angle across the image. While both are effective, diagonal watermarks are generally harder to crop out or remove without damaging the underlying image details.
A single watermark is placed in the center of the image. A tiled pattern fills the entire page with repeating text. If you are sending a copy for identity verification, a tiled pattern is usually safer as it covers more surface area, making it significantly more difficult for someone to edit or reuse the document.
Spacing applies specifically to tiled patterns. Lowering the spacing value packs the watermarks closer together for more coverage, though this may obscure important document details. Increasing the value spreads them out. Start at 100% and adjust until you find the right balance between security and readability.
PNG offers the highest quality and handles transparency well, but results in larger file sizes. JPEG reduces the file size, making it ideal for email attachments. WebP provides a middle ground with good quality at smaller sizes. If you are unsure, PNG is the most reliable choice for maintaining clarity.
Yes. This tool runs entirely in your web browser using your device's local resources. Your images are never uploaded to a server, stored in the cloud, or tracked. Once you close the browser tab, all data is cleared. No account or registration is required.