A watermark is a deterrent, not DRM
It makes casual copying obvious and can discourage reuse. It does not prevent a determined person from cropping or editing the document.
PDF tools
Mark the document, keep it yours.
Add “Draft”, “Confidential”, a company name, or a logo across the pages. Set how strong it is and where it sits; the document never leaves this tab.
No upload. No account. Files stay on your device. The processing happens in this browser tab—an unusual arrangement in a category full of upload forms.
Add a PDF
0 of 1 · 100 MB eachDrop a PDF here, or choose a file
PDF only, up to 100 MB.
Added locally. Nothing is uploaded.
Design the watermark
#6B7069
Use all, a single page, or a range such as 1-3, 8.
The mark is added above the page content. A watermark discourages casual copying but cannot prevent someone from cropping or editing the document.
Apply and download
Add a PDF, then design the mark.
Your PDF is opened and rebuilt inside this tab. There is no upload endpoint, no waiting in a queue, and no copy stored anywhere. How local processing works.
The short version
How it works.
No installer, no sign-up, and no second app to open. The work happens in the browser you already have, using the file already on your device.
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Load the PDF
Open the document and choose whether to mark every page or only a page range.
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Design the mark
Enter text or choose a PNG/JPG logo, then adjust size, opacity, rotation, and position. The preview shows the result over a representative page.
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Apply and download
Build the watermarked copy and save it. The mark is embedded in the PDF, while the original pages remain underneath.
Fine print, without the runaround
Good to know.
Every tool has a boundary. These are the ones worth knowing before you start, so the result is not a surprise.
Images with transparency work best
Use a PNG with a transparent background for a logo. Broad text watermarks are effective without hiding the content underneath.
Can I use an image as a watermark?
Yes. PNG and JPG images are supported. A transparent PNG logo gives the cleanest result over text and photos.
Will the watermark affect the original PDF?
No. Lovely Tools creates a new document. Your original file is unchanged and remains on your device.
Can I watermark only some pages?
Yes. Apply the watermark to all pages or enter a range such as 1-3, 8. This is useful for confidential exhibits that only need marking on certain pages.
Next door
Related tools.
Most file jobs come in pairs. These three usually follow close behind.