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Comparison

证件水印 vs PDF转换编辑

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

Head to head
证件水印 - 扫描身份证水印照片保障隐私安全
证件水印
$1.99
🔧 Utilities
★ 5.012 ratingsView app →
PDF转换编辑
PDF转换编辑
Free
🔧 Utilities
No ratingsView app →
About

证件水印

This utility app allows users to add text watermarks to documents and photos, protecting personal information from misuse. It supports batch processing for up to 50 images and can export in PDF or image formats, including an A4 print mode.

Highlights
  • Add text watermarks
  • Protect privacy information
  • A4 copy print mode
  • Export PDF or image
  • Batch watermark up to 50 photos
  • No network requests
Features
Read full description

证件水印 App 是一款为证件、照片添加文字水印的小工具，保障您的隐私信息不被盗用。 - 支持制作 A4 复印打印模式，导出 PDF 或图片格式 - 支持最多 50 张照片批量添加水印 证件水印 App 不会记录任何信息，无网络请求，不会发送任何数据请求，请放心使用。 如果遇到问题，请在设置的反馈中联系我们。

About

PDF转换编辑

Features
Read full description

PDF转换编辑是移动端处理 PDF 的工具，具有PDF 压缩、PDF转word/ppt、pdf提取图片、PDF拆分页、PDF合并、PDF删除页面、PDF转PPT、PDF添加图章、PDF添加水印、文件转PDF、图片扫描仪、网页转PDF等12个模块功能

Screenshots

证件水印3 screens
PDF转换编辑4 screens

Verdict

The call

The clearest difference is price: PDF转换编辑 at Free against 证件水印's $1.99. PDF转换编辑 also leads on update cadence (every 6 weeks vs every 14 months) and iOS requirement (12.0 vs 14.0). 证件水印's advantage is ads (none vs shown). On in-app purchases 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

PDF转换编辑 is free to download; 证件水印 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

证件水印 ships an update every 14 months, PDF转换编辑 every 6 weeks. The most recent releases landed on October 21, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
证件水印 versus PDF转换编辑: the parameters behind the verdict, then further details
Parameter证件水印PDF转换编辑
Price$1.99Free — better
Rating5.0 (12 ratings) — better—
Positive reviews92.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 14 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size2 MB97 MB
Age rating12+4+
Developer阳理 江广州市企云信息技术有限公司

In-app purchases

None

证件水印

No in-app purchases

None

PDF转换编辑

No in-app purchases

Questions

Is 证件水印 free?
证件水印 costs $1.99, with no in-app purchases.
Is PDF转换编辑 free?
PDF转换编辑 is free to download, with no in-app purchases.
Do 证件水印 or PDF转换编辑 have ads?
PDF转换编辑 shows ads; 证件水印 does not.
Which is updated more often, 证件水印 or PDF转换编辑?
证件水印 ships an update every 14 months, and PDF转换编辑 every 6 weeks. Most recently, 证件水印 was updated on October 21, 2026 and PDF转换编辑 on October 6, 2026.

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