Document stamping

Text watermarkingOpacity controlsLocal PDF modification

Add watermarks to PDF files.

Apply a draft, confidential, or branded watermark. Configure text, opacity, color, and size before applying the watermark in the browser session.

Input
One PDF
Runtime
Browser engine
Output
Stamped PDF
Watermark PDFPage numbersRedact PDFProtect PDF

Drop files here

Select one or more files to process locally in this browser tab.

Local processing · up to 50MB per file
How to use Watermark PDF
  1. 01

    Select PDF

    Choose the PDF you want to watermark. The file is read in the browser session.

  2. 02

    Configure watermark

    Set text, opacity, color, and size with explicit controls before export.

  3. 03

    Apply locally

    The watermark is applied to the PDF and the output is prepared for download.

Watermarking should feel like document preparation, not a neon stamp machine.

Direct PDF modification

The watermark is embedded as document content during the local processing workflow.

Explicit controls

Opacity, color, text, and size are visible before the final PDF is generated.

Instant output

The watermarked PDF is generated in the session and prepared for download.

Privacy first

Use local watermarking for drafts, copyright notices, and confidential stamps without a third-party upload step.

Draft and review marks

Mark documents as Draft, Confidential, Internal, or custom text before sharing.

Watermark is not redaction

Use redaction for permanent removal. Watermarks are a preparation and labeling workflow.

Professional PDF watermarking without privacy compromise

Adding watermarks to PDF documents is useful for branding, copyright protection, draft labeling, and security marking. Many online watermark tools require uploading files to remote servers. DocuStitch keeps standard watermarking workflows local.

The workflow applies text watermarks directly in your browser session, with controls for content, opacity, color, and size.

Use watermarking for document labeling. For permanent information removal, use a redaction workflow instead.

Local watermarking

Watermark logic runs in the browser session for standard workflows.

Privacy focused

Sensitive documents do not need a third-party upload step for basic watermarking.

Custom text controls

Set text, opacity, color, and font size before generating output.

Instant results

Output is created locally without a raw-file network transfer.

Frequently asked questions about Watermark PDF
Can I remove watermarks later?

Watermarks may be removable depending on how the PDF is edited. For permanent security marking or sensitive information removal, use redaction instead.

What watermark options are available?

The current workflow supports text watermarks with customizable content, opacity, colors, and font sizes.

Is there a file size limit?

Practical limits depend on browser memory and the standard DocuStitch file limits shown in the interface.

Does it work on mobile devices?

Modern mobile browsers can run the workflow, though large PDFs are usually more comfortable on desktop.