Add a text watermark to a PDF in your browser, with adjustable size, opacity and position. Nothing is uploaded.
Files are processed locally in your browser. Files are not uploaded to JoeLucky.
Merge PDF files client-side without upload
Open →Compress PDF files client-side, with a non-destructive "preserve document" mode and a smaller-file "rasterize" mode
Open →Split a PDF by page ranges, every N pages, or custom groups — original page content is fully preserved
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Watermark PDF stamps text such as "CONFIDENTIAL" or "DRAFT" onto the pages you choose. The watermark is drawn as vector text — pages are never turned into images and the original content is kept intact.
No. The watermark is drawn onto the page as real PDF vector text, so the original text, graphics and fonts are preserved and selectable text stays selectable. Nothing is screenshotted or converted through HTML.
Yes. The tool draws text in any language (Chinese, Japanese, Korean, Vietnamese, Thai, accented European letters …) with your browser’s own fonts and text engine, so Thai vowel/tone marks and Vietnamese stacked accents are placed correctly. Text made only of common Latin letters stays real, selectable text; other scripts are stamped as a picture that cannot be selected or searched, and the original page content is never turned into an image. If your device has no font for a character it can show as a box, so check the preview first.
Yes. Choose "Page range" and enter something like 1-3, 5 — only those pages are watermarked, and every other page, the page count and the order stay unchanged. You can also set opacity (0–100%), rotation (0°/45°/90° or a custom angle) and one of five positions.
