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Best Watermark PDF Apps

250+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated September 2026

From beginner-friendly picks to power-user tools, our watermark pdf list covers 250+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Watermark PDF Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PDF Watermarker - PDFStampPDF Watermarker - PDFStampFree4.5★ (2)YesYesSep 2026
2Add Watermark to PDFAdd Watermark to PDFFree—NoYesOct 2026
3Watermarkly ― Watermark MakerWatermarkly ― Watermark MakerFree4.8★ (1.2K)NoYesOct 2026
4PDF Watermark ExpertPDF Watermark ExpertFree5.0★ (1)YesYesJul 2026
5Watermark PDF & Photo: MarklioWatermark PDF & Photo: MarklioFree4.7★ (30)NoYesSep 2026
6PDF Watermark & StampPDF Watermark & StampFree—NoYesOct 2026
7PDF Editor - Merge & SplitPDF Editor - Merge & SplitFree5.0★ (3)NoYesSep 2026
8WaterMark photo with signatureWaterMark photo with signatureFree—NoNoJul 2026

Top Picks for Watermark PDF

Watermarkly ― Watermark Maker#3

Watermarkly ― Watermark Maker by Julia Nikitina

Add watermark to photo & PDF
Worth Considering
🎨 Graphics & Design
4.8😊(1.2K ratings)
FreeIn-App Purchases
Watermarkly ― Watermark Maker screenshot 1
Watermarkly ― Watermark Maker screenshot 2
Watermarkly ― Watermark Maker screenshot 3
Watermarkly ― Watermark Maker screenshot 4
Watermarkly ― Watermark Maker screenshot 5
Watermarkly ― Watermark Maker screenshot 6

Easily add custom text or logo watermarks to your photos, videos, and PDF files in batches. Customize transparency, size, rotation, and effects. Synchronize templates across devices to protect your work and promote your brand.

What We Love

  • 🚀 Easy to use
  • 👍 Customizable watermarks
  • 💡 Free version with ads
  • 🚀 Quick and efficient
  • 👍 Saves watermark templates
  • 👍 Professional-looking results

Room to Improve

  • 🐛 Occasional crashes or glitches
  • 🔒 Tracking required for saving
  • 🔋 Limited free usage (10 photos per day)

More Watermark PDF apps to explore

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FAQ about Watermark PDF

What are the best watermark pdf apps for iPhone?
PDF Watermarker - PDFStamp tops our watermark pdf apps ranking as of September 2026, with a 4.5-star average from 2 App Store ratings, and it's free to download.
Yes — 20 of the top watermark pdf apps we rank are free to download, including PDF Watermarker - PDFStamp and Add Watermark to PDF.
PDF Watermarker - PDFStamp shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ watermark pdf apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.