Watermark PDFMarch 20, 20263 min read

How to Add a Watermark to a PDF on Mac Free

Stamp a text or image watermark on a PDF on Mac. Free browser tool, no Acrobat needed.

Open Safari on Mac. Go to fixmypdf.in/tools/pdf-mark. Upload. Add your watermark text or image. Download.

Steps

Go to fixmypdf.in/tools/pdf-mark. Upload. Choose text watermark. Enter text (e.g. "DRAFT"). Set font, size, opacity, angle. Apply. Download.

Diagonal vs Horizontal

Diagonal watermarks (45°) are harder to crop out and are standard for "CONFIDENTIAL" or "DRAFT" stamps. Horizontal watermarks work better for branding (company name in footer).

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Stamp any PDF with a text or image watermark online for free — no account, no watermarks added by the tool itself. Works on any device.

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Stamp a PDF with CONFIDENTIAL, DRAFT, or a custom logo on iPhone in Safari — no app download, no Adobe subscription.

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Stamp a PDF with CONFIDENTIAL, DRAFT, or a custom logo on Windows 10/11 in Chrome or Edge — no Adobe Acrobat, no software install.

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