Watermark - FAQ
Watermark
Go to tool →- QWill every page be watermarked?
- Yes by default. Enter a range like 1-3,5,7- to watermark only selected pages.
- QCan I use Chinese or Japanese watermark text?
- Yes. The backend automatically tries a CJK-capable font when non-ASCII text is detected.
- QWhich image formats are supported?
- PNG, JPG, and JPEG are supported up to 5MB. Transparent PNG areas are preserved where possible.
- QIs the preview exact?
- The preview is an approximation in the browser. The final PDF generated by the backend is authoritative.
- QAre watermarks vector or raster?
- Text watermarks are vector PDF text objects. Image watermarks are embedded at their original resolution and PNG transparency is preserved.
- QCan I rotate the text watermark?
- Yes — rotation is fully adjustable between -90° and 90°. -30° is a common choice for diagonal stamps.
- QAre my files retained?
- Source PDFs, watermark assets, and outputs are deleted automatically within one hour and the download link expires.
- QCan I remove an existing watermark?
- No. This tool only adds watermarks. Removing watermarks is intentionally out of scope.