Comparison

Watermark PDF & Photo vs Secure Watermark

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Watermark PDF & Photo

Easily add text, logos, images, or QR codes to your photos and PDF documents. Customize placement, size, and opacity for professional results. Save watermarks as reusable stickers for quick application.

Highlights
  • Add text, logos, and images to photos/PDFs
  • Create QR codes with website links
  • Use ready-made stamps and logos
  • Batch image processing (Pro)
  • Save watermarks as reusable stickers (Pro)
  • Select specific PDF pages for watermarking
Features
Read full description

Add your logo, text, a stamp or a QR code to any photo or PDF — and keep your work yours. Marklio watermarks images and documents in seconds. Place your mark anywhere, resize it, rotate it, change its color and opacity, then save or share. Everything happens on your iPhone. WHAT YOU CAN ADD • Text — your name, your studio, a copyright line • Your own logo or any image, with adjustable transparency • Ready-made stamps: PAID, DRAFT, CONFIDENTIAL, ORIGINAL, APPROVED and more, in any color • A QR code linking to your website or portfolio WORKS ON PDF, PROPERLY • Watermark an entire PDF, or pick exactly which pages get it • Control page quality and output file size • Your document stays a PDF BUILT FOR REAL WORK • Batch mode: watermark up to 50 images at once (PRO) • Save any watermark as a reusable sticker and apply it in two taps (PRO) • Duplicate a watermark across the canvas in one tap • Unlimited saving of results (PRO) WHO USES MARKLIO Photographers sending proofs. Designers sharing drafts. Freelancers stamping invoices. Agents protecting listing photos. Anyone who has to send a file and would rather it came back with their name still on it. PRO Marklio is free to use. PRO unlocks batch processing, unlimited saves, premium stamps and saved watermark stickers. Available as a subscription or a one-time purchase. Privacy Policy https://docs.google.com/document/d/1QWi7rspyLNjoBilRArw0tZdPMbjn52Joat8vMQwe1UY/edit?usp=sharing Terms of Use https://docs.google.com/document/d/1Va5mD8jq2TYFicO7s1T-FDaK_4OPrwGLZW3AfmcFu0g/edit?usp=sharing

About

Secure Watermark

Easily protect your sensitive documents and digital creations from unauthorized use. Add custom text, image, or handwritten signature watermarks to photos, IDs, and artwork. Offers advanced customization for text and image placement, with ID mode for seamless document protection.

Highlights
  • Rich text watermarks with full customization
  • Image watermarks with adjustable transparency
  • Handwritten signature watermarks
  • ID mode for secure document protection
  • Export as image or PDF at 300 DPI
  • Watermark management list
Read full description

[Applicable scenarios] - Protect your ID card, bank card, driver's license and other ID photos to prevent unauthorized use. - Protect your photos, paintings, digital works to prevent unauthorized use. [Watermark type] The application supports three types of watermarks: rich text watermarks, image watermarks and handwritten signature watermarks, and supports full screen and single watermark functions. [Rich text watermark] - Supports multi-line text watermarks. - Customizable font color, background color, transparency, font style (bold, italic), size, etc. - Provides adjustment functions for alignment, line spacing, watermark spacing and rotation angle. [ID mode] - ID mode supports importing ID card front and back images, and automatically adjusts to A4 paper size to ensure that the printing effect is consistent with the actual object. - You can choose to display the ID card outline and support manual scaling of the image. - Can be exported as an image or PDF document, with an output resolution of 300 DPI A4 paper. [Image watermark] - Customized images can be inserted as watermarks. - Supports adjusting image size, transparency, watermark spacing and rotation angle. [Handwritten Signature Watermark] - Provides multiple pen stroke types such as fountain pen, water pen, etc. - Customizable stroke color and size. - Supports undo, redo functions and eraser. - Provides a convenient watermark management list.

Screenshots

Watermark PDF & Photo3 screens
Secure Watermark4 screens

Verdict

The call

The clearest difference is rating: Watermark PDF & Photo at 4.7 against Secure Watermark's 1.0. Watermark PDF & Photo also leads on ratings volume (30 vs 1). Secure Watermark's advantage is in-app purchases (none vs 7) and update cadence (every 2 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Watermark PDF & Photo sells 7 in-app purchases, starting at $4.99 per 7 days. Secure Watermark asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Watermark PDF & Photo holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Watermark PDF & Photo has 30 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Watermark PDF & Photo ships an update every 3 months, Secure Watermark every 2 weeks. The most recent releases landed on September 21, 2026 and June 1, 2026 respectively.

Scorecard6 real differences · 4 level
Watermark PDF & Photo versus Secure Watermark: the parameters behind the verdict, then further details
ParameterWatermark PDF & PhotoSecure Watermark
PriceFreeFree
Rating4.7 (30 ratings) — better1.0 (1 ratings)
Positive reviews66.7% of reviews—
Number of ratings30 — better1
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size17 MB2 MB
Age rating4+4+
DeveloperEvgeniy Konev泽海 黄

Customer experience

Watermark PDF & Photo

All ratings30 ratings
Positive90.0%
Neutral3.3%
Negative6.7%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Secure Watermark

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

7 purchases

Watermark PDF & Photo

Subscriptions4
  • Pro Weekly$4.997 Days
  • Monthly$4.991 Month
  • 6 months3 Days trial$14.996 Months
Show 1 more
  • Pro Yearly3 Days trial$29.991 Year
One-time3
  • Watermark PRO$7.99
  • Watermark PRO Special offer$12.99
  • PRO Forever$24.99
None

Secure Watermark

No in-app purchases

Questions

Is Watermark PDF & Photo free?
Watermark PDF & Photo is free to download, with in-app purchases available.
Is Secure Watermark free?
Secure Watermark is free to download, with no in-app purchases.
Which has better reviews, Watermark PDF & Photo or Secure Watermark?
Watermark PDF & Photo is rated higher. Watermark PDF & Photo averages 4.7 out of 5 from 30 ratings, while Secure Watermark averages 1.0 from 1 ratings.
Do Watermark PDF & Photo or Secure Watermark have ads?
Neither Watermark PDF & Photo nor Secure Watermark shows ads.
Which is updated more often, Watermark PDF & Photo or Secure Watermark?
Watermark PDF & Photo ships an update every 3 months, and Secure Watermark every 2 weeks. Most recently, Watermark PDF & Photo was updated on September 21, 2026 and Secure Watermark on June 1, 2026.

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