PowerPoint Watermark & Slide Numbers
Stamp a draft or confidential watermark on every slide, add slide numbers, or both — without touching the master.
How it works
This utility runs locally in your browser for privacy and speed.
1 ⚡
Unlimited local toolsThis run costs 1 credit(s) and is saved to your history automatically.
Log in to save and view your usage history.
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Frequently asked questions
- Do I get free credits to try PowerPoint Watermark & Slide Numbers?
- Yes — new accounts get 3 free credits to spend on any tool, PowerPoint Watermark & Slide Numbers included. After that you only pay for what you run.
- How many credits does PowerPoint Watermark & Slide Numbers cost?
- Everything runs in your browser and nothing is uploaded: free accounts pay 1 credit per run, and Pro or Pro+ members run it as often as they like.
- Is the content I paste private?
- PowerPoint Watermark & Slide Numbers uses your input only to generate the result. Stored results are deleted automatically by our retention policy, and you can remove any run from your history.
- Where is my PowerPoint file processed?
- In your browser. PowerPoint Watermark & Slide Numbers reads the .pptx package locally, so the deck itself never leaves your device — nothing is uploaded, and it works offline. Only the exported file (Markdown, Word, ZIP or a smaller .pptx) is saved to your downloads.
- Do I need to install anything?
- No. PowerPoint Watermark & Slide Numbers works in any modern browser — nothing to download or install.
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