# Watermark PDF for authors

_Updated July 2026 · Arthize · https://arthize.com/for/authors/watermark-pdf_

Arthize lets authors and self-publishers add a watermark to a PDF in a private workspace — free, with no watermark. Adding a watermark stamps text or an image — like DRAFT or CONFIDENTIAL — across every page at the opacity and angle you choose.

## Why authors add a watermark to a PDF

An author merges manuscript chapters into one file, resizes the pages to the print trim size, and exports a clean, watermark-free PDF for the printer.

**Built for manuscripts.** Whether it's manuscripts, proofs, cover files, Arthize's watermark pdf keeps the work inside your private workspace. Unpublished manuscripts are valuable IP; private processing keeps them off public servers.

## What matters when you add a watermark to a PDF

A watermark can be text or an image applied across every page.

Opacity and angle control how prominent the mark is.

Watermarks are useful for marking drafts and confidential copies.

## How to add a watermark to a PDF

1. **Open the watermark tool** — Sign in and open the Watermark tool.
2. **Add your PDF** — Upload the document to stamp.
3. **Design the watermark** — Set the text or image, opacity, angle and position.
4. **Download** — Get a watermarked PDF.

## FAQ

### How do authors add a watermark to a PDF for free?

Adding a watermark stamps text or an image — like DRAFT or CONFIDENTIAL — across every page at the opacity and angle you choose. On Arthize it's free with no watermark, and the file is deleted after the job — which is why authors and self-publishers can use it for manuscripts without a confidentiality risk.

### Is it private to add a watermark to a PDF sensitive manuscripts?

Yes. Unpublished manuscripts are valuable IP; private processing keeps them off public servers. Files are processed inside your private Arthize workspace and deleted after the job.

### How do I add a watermark to a PDF?

Adding a watermark stamps text or an image — like DRAFT or CONFIDENTIAL — across every page at the opacity and angle you choose. On Arthize it's free with no watermark and processed privately.

### Can I add a CONFIDENTIAL stamp to every page?

Adding a watermark stamps text or an image — like DRAFT or CONFIDENTIAL — across every page at the opacity and angle you choose. On Arthize it's free with no watermark and processed privately.