Is my PDF uploaded to Scanonix servers?

No. Watermark PDF runs locally in your browser, so your document is not uploaded to Scanonix servers during processing.

Can I watermark every page at once?

Yes. Choose all pages or enter a custom page range such as 1-5, 8, or 10-12.

Can I use my logo as a watermark?

Yes. Switch to image mode and upload a PNG or JPEG logo as your watermark.

Can I add text and an image watermark together?

Each export supports one text watermark or one image watermark. Run the tool again if you need a different watermark type.

What happens with password-protected PDFs?

Password-protected PDFs cannot be watermarked in the browser. Unlock the PDF first with Unlock PDF, then watermark the unlocked copy.

Watermark PDF Online

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Add text or image watermarks to PDF pages online in your browser. Upload a PDF, choose text or an image watermark, adjust placement, rotation, opacity, and page range, then download — all processed locally on your device.

How to use

Upload the PDF you want to watermark.
Choose a text or image watermark and adjust position, rotation, and opacity.
Select all pages or a custom page range, then download the watermarked PDF.

Why use this tool

Mark draft or confidential versions clearly before sharing.
Add company branding to shared PDFs with a logo image watermark.
Processing happens locally so your PDF stays on your device.
Preview watermarks live on each page before export.

Good to know

Password-protected PDFs must be unlocked before watermarking.
Apply one text watermark or one image watermark per export — not both at once.
Very large page counts may be limited by browser memory.

Key features

Text or image watermarks
Nine-position placement grid
Adjustable rotation and opacity
Custom page range selection
Live PDF preview
Local browser processing

Frequently asked questions

Is my PDF uploaded to Scanonix servers?: No. Watermark PDF runs locally in your browser, so your document is not uploaded to Scanonix servers during processing.
Can I watermark every page at once?: Yes. Choose all pages or enter a custom page range such as 1-5, 8, or 10-12.
Can I use my logo as a watermark?: Yes. Switch to image mode and upload a PNG or JPEG logo as your watermark.
Can I add text and an image watermark together?: Each export supports one text watermark or one image watermark. Run the tool again if you need a different watermark type.
What happens with password-protected PDFs?: Password-protected PDFs cannot be watermarked in the browser. Unlock the PDF first with Unlock PDF, then watermark the unlocked copy.

Related tools

Password-Protect PDF OnlinePassword-protect PDF files online with Scanonix. Encrypt sensitive documents with a password you choose — your password is not stored by Scanonix.
Redact PDFRedact sensitive PDF content with manual area selection. Draw redaction boxes on pages — processed locally in your browser with secure hybrid rasterization.
Merge PDF Files OnlineMerge PDF files online and combine them into one document. Upload multiple PDFs, reorder files, and download a single merged PDF from your browser.
Compress PDF Without Losing QualityCompress PDF files online to reduce file size for email and uploads. Choose Light, Recommended, or Strong compression with secure server-side processing.
Crop PDFCrop PDF pages online by selecting the visible area you want to keep. Crop individual or multiple pages locally in your browser with Scanonix.

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Preparing your workspace.

Frequently asked questions

Is my PDF uploaded to Scanonix servers?: No. Watermark PDF runs locally in your browser, so your document is not uploaded to Scanonix servers during processing.
Can I watermark every page at once?: Yes. Choose all pages or enter a custom page range such as 1-5, 8, or 10-12.
Can I use my logo as a watermark?: Yes. Switch to image mode and upload a PNG or JPEG logo as your watermark.
Can I add text and an image watermark together?: Each export supports one text watermark or one image watermark. Run the tool again if you need a different watermark type.
What happens with password-protected PDFs?: Password-protected PDFs cannot be watermarked in the browser. Unlock the PDF first with Unlock PDF, then watermark the unlocked copy.

Related tools

Password-Protect PDF OnlinePassword-protect PDF files online with Scanonix. Encrypt sensitive documents with a password you choose — your password is not stored by Scanonix.

Redact PDFRedact sensitive PDF content with manual area selection. Draw redaction boxes on pages — processed locally in your browser with secure hybrid rasterization.

Merge PDF Files OnlineMerge PDF files online and combine them into one document. Upload multiple PDFs, reorder files, and download a single merged PDF from your browser.

Compress PDF Without Losing QualityCompress PDF files online to reduce file size for email and uploads. Choose Light, Recommended, or Strong compression with secure server-side processing.

Crop PDFCrop PDF pages online by selecting the visible area you want to keep. Crop individual or multiple pages locally in your browser with Scanonix.