PDF watermark

Stamp a text watermark across every PDF page.

Runs on your deviceFreeNo account

How to use PDF watermark

Open PDF watermark. Stamp a text watermark across every PDF page. Set the options, then copy or download. Files and text stay on your device. Built for phones and desktops.

Add your file

Drag & drop, browse files, or press Ctrl+V to paste from the clipboard where supported.

Process in the browser

Work stays in this tab with WebAssembly, Canvas, or other on-device APIs — your file is not uploaded to Omnipus.

Download or share

Save the result to your device, or share it with the OS share sheet when available.

Direct share: Install Omnipus as an app on Android to share files and links into this tool from other apps.

About this tool

Stamp a text watermark across every PDF page. Control opacity and rotation so drafts and reviews stay marked. PDF watermark on Omnipus runs in this tab with no upload. No account, watermark, or daily cap.

#pdf watermark#stamp pdf

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Frequently Asked Questions

Is PDF watermark free?

Yes. Omnipus tools have no signup, watermark, or conversion quota.

Do you upload my data?

No. Processing stays in your browser.

Will this work on my phone?

Yes. Controls are stacked, tap targets are large, and the search header stays on one row.

Is PDF watermark completely free to use?

Yes. PDF watermark on Omnipus is free to use with no subscription paywall for the tool itself.

Are my files or data uploaded to any servers?

No. PDF watermark processes your input locally in this browser tab. Your files and text are not sent to Omnipus. Some tools download an engine or model file the first time you use them; that is a download, not an upload.

Does Omnipus add watermarks to exported files?

No. Omnipus does not stamp a site watermark onto files you export from PDF watermark.

Can I use PDF watermark on my mobile phone?

Yes. Omnipus has touch-friendly controls and can be installed as an app. On Android you can also share files or links into tools from other apps.

Related tools

More pdf tools that pair well with this one.

WatermarkStamp text or a logo onto photos before you share them.Compress PDFShrink PDFs with Raster (max shrink) or Light (keep selectable text) mode.Merge PDFJoin multiple PDFs into one document, in any order.PDF to WordExtract readable text from a PDF into an editable Word (.docx) file.Word to PDFConvert DOCX to PDF in your browser — layout may change on complex documents.JPG to PDFCombine one or many images into a single PDF.