# Watermark PDF for teachers

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

Arthize lets teachers and educators 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 teachers add a watermark to a PDF

Before class a teacher merges a reading and a worksheet into one handout, prints four slides per sheet to save paper, and adds page numbers so students can follow along — all without a watermark.

**Built for worksheets.** Whether it's worksheets, lesson plans, handouts, Arthize's watermark pdf keeps the work inside your private workspace. Grade sheets and student information are sensitive. A private workspace keeps class records 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 teachers 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 teachers and educators can use it for worksheets without a confidentiality risk.

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

Yes. Grade sheets and student information are sensitive. A private workspace keeps class records 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.