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Is there a file size limit to add a watermark to a PDF?
Updated July 2026
On the free plan you can add a watermark to a PDF with files up to 10 MB and 25 pages. Pro raises this to 200–500 MB and up to 1000 pages, and Lifetime to 1 GB with unlimited pages. Adding a watermark stamps text or an image — like DRAFT or CONFIDENTIAL — across every page at the opacity and angle you choose.
Answer
On the free plan you can add a watermark to a PDF with files up to 10 MB and 25 pages. Pro raises this to 200–500 MB and up to 1000 pages, and Lifetime to 1 GB with unlimited pages. Adding a watermark stamps text or an image — like DRAFT or CONFIDENTIAL — across every page at the opacity and angle you choose.
More about watermark 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.
Common questions
- 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.
- Is adding a watermark 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 processed privately.
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