Add Watermark to PDF
Securely watermark your PDF files entirely in your browser.
Drag & Drop PDF here
or click to browse files
Add Watermark to PDF Online for Free
Protect your intellectual property, label drafts, or add company branding to your documents with our robust Add Watermark to PDF tool. Unlike other services that upload your sensitive documents to a cloud server, Randomly.online processes your files entirely within your web browser. This means your data never leaves your device, ensuring maximum privacy and security. You can also protect your PDF with a password for an extra layer of security.
Whether you need to stamp "CONFIDENTIAL" across a legal contract, add your logo to a presentation, or copyright your creative work, our intuitive interface makes it effortless. You have full control over opacity, rotation, size, and positioning. If you are starting from an image file, you might want to convert PDF to JPG first to edit the visuals directly.
How to Watermark a PDF
- Upload your PDF: Drag and drop your file into the upload zone or click the button to select a file from your device.
- Choose Watermark Type: Use the control panel to switch between "Text" and "Image" modes. Type your text or upload a PNG/JPG logo.
- Customize Appearance: Adjust the transparency slider to ensure the text underneath remains readable. Rotate the watermark (e.g., -45 degrees) and choose a position like "Center" or "Tile" for full coverage.
- Select Pages: Decide if you want the watermark on all pages or specific page ranges (e.g., pages 1-3). You can also rearrange PDF pages before watermarking if needed.
- Download: Click "Download Watermarked PDF" to instantly generate and save your new secured document.
Frequently Asked Questions
Absolutely. We use advanced client-side technology (WebAssembly), which means your PDF file is processed directly on your computer or phone. It is never uploaded to our servers, ensuring your private documents remain 100% private.
Yes. In the "Apply To" section of the control panel, select "Custom Range." You can then enter specific page numbers (e.g., "5") or ranges (e.g., "1-10") to apply the watermark only where needed. If the file is too large to manage, try to compress your PDF first.
Yes! If you upload a PNG logo with a transparent background, the transparency is preserved. You can also adjust the overall opacity of both text and image watermarks. If you need to change document properties later, you can edit PDF metadata easily.