Drag & Drop your PDF here
to add a secure, private watermark
Watermark Settings
Preview shows the first page of your document.
Protect Your Documents with a Custom Watermark
Whether you are sending a draft proposal to a client, sharing an unpublished manuscript, or distributing confidential corporate documents, adding a watermark is essential for protecting your intellectual property and preventing unauthorized sharing.
The GungorKaya PDF Watermark Tool allows you to quickly stamp custom text across every page of your document. Choose your exact text, pick a color, adjust the transparency, and rotate it for maximum impact.
Why "Client-Side" Watermarking is Vital
Think about the types of documents that require watermarks: legal contracts, financial spreadsheets, and unreleased designs. Uploading these highly sensitive files to a remote "free PDF editor" server is a massive privacy risk.
Our tool eliminates that risk entirely. Utilizing advanced HTML5 and JavaScript technology, your PDF is loaded directly into your browser's local memory. The watermark is stamped onto the pages using your device's own processing power.
- Zero Server Uploads: Your documents never leave your computer. We do not store, view, or transfer your data.
- Instant Processing: Without the need to upload heavy files over your internet connection, the watermarking process is completed almost instantaneously.
- Fully Customizable: Unlike basic tools that force a generic gray stamp, you have full control over the font size, color hex code, opacity level, and rotation angle.