Watermark PDF
Upload a PDF, write a text or choose your logo, adjust where and how it appears, and apply it to every page.
Not sure? Turn your internet off and try — it still works.
How it works
All processing happens locally, in your browser. Your PDF is never sent to any server, which keeps things more private and secure. How to use it: 1. Choose the PDF; the preview shows its first page. 2. Pick "Text" and type the watermark (it works with any alphabet), or "Image" and choose your logo. 3. Set the size (as a percentage of the page width), the position, the opacity and the rotation. The preview updates as you change them. 4. Choose "All pages" (the default) or "Specific pages" and type which ones, e.g. 1-5, 8, 10-15 (ranges and single pages, separated by commas). 5. Click Apply and download. The same watermark goes on each chosen page. The preview shows the first page only; pages of other sizes get the watermark in the same proportion. Pages that are rotated inside the PDF are handled too: the watermark appears where you see it in the preview, not sideways.