A4Pad – Annotate, Merge PDF

Giuseppe Lucariello · iOS

A4Pad – Annotate, Merge PDF

Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.

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01 / Creative research

Turn the unknowns into a research plan.

01

Check the acquisition promise

Read the store headline, screenshots and description. What problem is the app promising to solve?

Study the storefront ↗
02

Look for ad evidence

Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.

Browse observed advertisers ↗
03

Separate demand from paid growth

Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.

Review the market context ↗

02 / Storefront & product

Where the click lands.

Study the product story and store experience behind the acquisition funnel.

Screenshots

A4Pad – Annotate, Merge PDF screenshot 1A4Pad – Annotate, Merge PDF screenshot 2A4Pad – Annotate, Merge PDF screenshot 3A4Pad – Annotate, Merge PDF screenshot 4A4Pad – Annotate, Merge PDF screenshot 5A4Pad – Annotate, Merge PDF screenshot 6A4Pad – Annotate, Merge PDF screenshot 7A4Pad – Annotate, Merge PDF screenshot 8

03 / Market context

The business behind the app.

Keep revenue, downloads and store rankings separate from advertising performance.

How Much Does A4Pad – Annotate, Merge PDF Make?

Monthly Revenue
$1.0K
Annualized estimate
$12.0K
Per Download
$1.00

Platform Performance

🍎iOS
Revenue
$1.0K
Downloads
1.0K
Rating
4.6 ★(5)

Rating Distribution

4.6
★★★★★
5 reviews
5
0%
4
0%
3
20%
2
0%
1
80%

Top Countries

🇹🇼 TW🇰🇷 KR🇭🇰 HK
Reviews (1)▼
★★★★★X&Xe3/9/2026
为了鼓励给的5星……

我其实怀着有所期待的心情,下载这个app。 显然,我失望了: 1️⃣我的清晰的试题照片,导入后成了模糊得分不清字数的毛玻璃——我哪怕用Apple内置的“图片转pdf”快捷指令,也不会出现降低画质到完全无法分辨字数的模糊。 2️⃣我有一个长截图照片,这也是我期待的功能,希望能根据图片的长宽比,把这个长截图分拆到几张PDF的页面上。很显然这个app只是在一张PDF页面上显示我整个的长截图。 上面1️⃣2️⃣两点显示这个app目前还不如图片转PDF的快捷指令。 但我打5星来鼓励开发者后续实现上面的功能,最基本的实现,只需要导入前,对于图片长宽比进行计算,然后适当缩放图片前,如果发现图片过长,以至于如果整体把图片显示在一页a4规格的pdf页面上时,宽会变得很小,那么这时候就要通过计算,来把长截图分解为多张符合a4尺寸的图片,分别放入多个a4的PDF页面。

Version History (10)▼
3.1.09/2/2026
3.0.08/24/2026
2.0.17/23/2026
2.0.07/23/2026
1.1.77/6/2026
1.1.32/11/2026
1.1.22/3/2026
1.1.11/30/2026
1.11/27/2026
1.01/20/2026
Available In (111 Countries)▼
🇺🇸 United States🇦🇺 Australia🇨🇦 Canada🇫🇷 France🇩🇪 Germany🇬🇧 United Kingdom🇮🇹 Italy🇯🇵 Japan🇰🇷 South Korea🇦🇹 Austria🇧🇪 Belgium🇧🇬 Bulgaria🇭🇷 Croatia🇨🇾 CY🇨🇿 Czech Republic🇩🇰 Denmark🇫🇮 Finland🇬🇷 Greece🇭🇺 Hungary🇮🇪 Ireland🇱🇹 Lithuania🇱🇺 LU🇲🇹 MT🇳🇱 Netherlands🇳🇿 New Zealand🇳🇴 Norway🇵🇱 Poland🇵🇹 Portugal🇷🇴 Romania🇷🇸 RS🇸🇰 Slovakia🇸🇮 Slovenia🇿🇦 South Africa🇪🇸 Spain🇸🇪 Sweden🇨🇭 Switzerland🇪🇪 Estonia🇱🇻 Latvia🇨🇳 China🇷🇺 Russia🇩🇿 DZ🇦🇴 AO🇦🇷 Argentina🇦🇿 AZ🇧🇭 BH🇧🇾 BY🇧🇷 Brazil🇨🇱 Chile🇨🇴 Colombia🇨🇷 CR🇩🇴 DO🇪🇨 EC🇪🇬 Egypt🇸🇻 SV🇬🇭 GH🇬🇹 GT🇭🇰 Hong Kong🇮🇳 India🇮🇩 Indonesia🇮🇱 Israel🇰🇿 KZ🇰🇪 Kenya🇰🇼 KW🇱🇧 LB🇲🇴 MO🇲🇾 Malaysia🇲🇽 Mexico🇳🇬 Nigeria🇴🇲 OM🇵🇰 Pakistan🇵🇦 PA🇵🇪 Peru🇵🇭 Philippines🇶🇦 QA🇸🇦 Saudi Arabia🇸🇬 Singapore🇱🇰 LK🇹🇼 Taiwan🇹🇭 Thailand🇹🇳 TN🇹🇷 Turkey🇺🇦 Ukraine🇦🇪 UAE🇺🇾 UY🇺🇿 UZ🇻🇪 VE🇻🇳 Vietnam🇧🇴 BO🇰🇭 KH🇳🇮 NI🇵🇾 PY🇬🇪 GE🇮🇶 IQ🇱🇾 LY🇲🇦 MA🇲🇿 MZ🇲🇲 MM🇾🇪 YE🇧🇯 BJ🇧🇫 BF🇨🇲 CM🇨🇬 CG🇨🇮 CI🇯🇴 JO🇱🇦 LA🇲🇱 ML🇸🇳 SN🇹🇿 TZ🇺🇬 UG🇿🇲 ZM🇿🇼 ZW
Supported Languages (1)▼
English
App Details▼

Combine images, PDF, Scans, everything into one clean document — then write all over it. Handwrite notes on real A4 pages with Apple Pencil, place im...

iOS App ID
6757722438
Content Rating
4+
Min OS
18.6
Size
3.7 MB
In-App Purchases
Yes
Publisher
Giuseppe Lucariello

In-App Purchases (1)

NamePriceType
Unlimited Exports$3.99One-time