Add Watermark

Upload a PDF, place a text or logo watermark, adjust opacity, rotation, size, and position, then download a new watermarked PDF.

Place text or PNG/JPEG logo watermarks onto every PDF page.

Tune opacity, rotation, size, color, and page position before export.

  • Download a new watermarked PDF.
  • Use text or logo marks.
  • Browser-based PDF editing session.

How to use Add Watermark online

Use these steps to add a watermark to a PDF for draft review, confidential sharing, brand ownership, or client document delivery.

  1. 1

    Add your file

    Upload the PDF you want to mark, then wait for the first-page preview so you can see how the watermark will sit on the document.

  2. 2

    Choose the watermark

    Choose a text watermark such as CONFIDENTIAL or DRAFT, or upload a PNG or JPEG logo, then adjust size, color, opacity, rotation, and position.

  3. 3

    Export the result

    Run the watermark action, review the generated filename and file size, then download the new PDF while keeping the original unmarked copy separate nearby.

PDF upload and preview

Start from a PDF file and use the first-page preview to judge whether the watermark is readable without covering important document content.

Text watermark controls

Create a text mark for draft, confidential, sample, copyright, or review status, then set font size, color, opacity, rotation, and placement.

Logo image watermark

Upload a PNG or JPEG mark such as a logo or signature image, then scale it and place it in the center, corners, or diagonal position.

All-page PDF export

The watermark is applied across the document pages and saved as a separate PDF, leaving the source file untouched for comparison.

Browser-based processing

PDF parsing, preview generation, watermark placement, and file export happen in the browser with no required Rune account or software install.

Placement checks before sharing

Opacity and rotation controls help keep text readable, so you can mark ownership or status without making the PDF difficult to read.

Add Watermark privacy and processing

Add Watermark describes how the PDF, preview, watermark settings, and generated file are handled so you can decide whether the browser workflow fits the document.

Processing Browser

Add Watermark uses browser PDF processing to place text or image watermarks, so the source PDF and output stay in the current tab until download.

Storage None

The selected PDF, preview image, watermark settings, and generated file are temporary browser state; download the watermarked PDF before refreshing or changing files.

Add Watermark account access

Add Watermark does not require an account; keep the page open while you choose text, logo image, opacity, rotation, position, and output.

Before You Use Add Watermark

Check these PDF watermark details before marking legal files, drafts, invoices, proposals, or client documents that need clear ownership or status labels.

Privacy

Add Watermark processes the PDF in the browser session, but you should still avoid documents you are not allowed to edit or share.

A watermark does not remove hidden PDF metadata, comments, signatures, or sensitive text already inside the file.

Input Quality

Use a clean, unlocked PDF when possible, because damaged, encrypted, or unusual PDFs can fail during preview or export.

For image watermarks, choose a PNG or JPEG logo with enough contrast to remain visible at lower opacity.

Output

Review whether the mark covers signatures, form fields, charts, or small text before sending the PDF to someone else.

Keep the original unmarked PDF until you confirm the exported file opens correctly in your normal PDF viewer.

Limits

Add Watermark accepts PDF files and can embed text or PNG/JPEG image marks in the browser; very large or protected PDFs may slow preview, editing, or export.

The current tool applies the chosen watermark across the PDF rather than offering page-by-page rules.

Questions about Add Watermark

What does Add Watermark do?

Add Watermark adds a visible text or image mark to a PDF and exports a separate watermarked PDF. It is useful for draft labels, confidential documents, copyright notices, client proofs, classroom files, and branded proposals.

Can I add a logo watermark to a PDF?

Yes. The current tool supports image watermarks from PNG or JPEG files. Upload the logo image, choose a scale, set opacity and rotation, pick a position, and export the new PDF.

Does Add Watermark overwrite the source PDF?

No. The tool creates a new watermarked PDF for download. Keep the original unmarked file available so you can compare the result or create a different watermark version later.

Will a watermark protect a PDF from copying?

A watermark helps show ownership, status, or confidentiality, but it is not full copy protection. Use PDF permissions, passwords, or a secure document system when access control matters.

Why can watermarking fail?

The PDF may be encrypted, damaged, very large, or built in a way the browser PDF library cannot process cleanly. Try an unlocked copy, reduce file size, or export the PDF again from its source app.

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