PDF Watermark & Stamp

Protect & Label Private Docs

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Add single or repeated watermarks to PDFs before you share them. Export a new marked copy while the original file stays untouched. Just PDF Watermark is a focused iPhone app for adding text watermarks to PDF files before you send, upload, or store copies. Choose a PDF from Files, write the purpose of the copy, preview each page, and export a new watermarked PDF. Your original document stays untouched. Use Just PDF Watermark to: - Add repeated diagonal watermarks across every page - Add one large centered watermark when a simple stamp is enough - Adjust text, opacity, size, and color - Preview pages before export - Create a new marked copy for sharing or saving to Files Watermarking runs on device using Apple PDF tools. The app does not require an account and does not upload your documents to a server. Built for everyday documents such as rental applications, bank statements, ID copies, visa paperwork, draft files, and other PDFs that need a visible purpose mark before sharing.

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Say hello to our new look! PDF Watermarker is now Just PDF Watermark, with a fresh app icon and a cleaner name. It's the same private, on-device PDF watermarking you rely on — now with performance improvements and bug fixes.

The developer, 嘉莉 梁, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • 嘉莉 梁
    Size
    • 2.1 MB
    Category
    • Productivity
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 12 more
    • English, Arabic, Filipino, French, German, Indonesian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Thai, Traditional Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 @Just Compress