Add text or image watermarks to multiple PDF files at once, with custom opacity, rotation, and position.
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Add multiple PDFs to add watermarks to all at once.
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Add multiple PDFs to add watermarks to all at once.
Drag in or select multiple PDF files from your device.
Set text or image, opacity, rotation, position, and page range.
Download each watermarked file or all as a ZIP archive.
Yes. OnePDFs is free to use, requires no account, and does not add an extra OnePDFs branding watermark; watermark tools add only the watermark you choose.
Your files stay on your device and are processed locally in your browser; no upload to our PDF processing service is required. The browser keeps the selected files in memory only until the page session ends.
Both text and image watermarks. Text watermarks support custom font size, color, and content. Image watermarks support PNG and JPG with adjustable scale.
Yes. Choose from 9 positions (corners, edges, center), set rotation (-180° to 180°), opacity, and pick between single placement or tiled across the entire page.
Yes. You can apply to all pages or specify a custom page range (e.g., 1-3, 5, 7-10).