# PDFin PDF Edit Convert PDF PNG — Scanner sign by p12 cert file

> PDF editor for digital signatures, e-signatures, and document conversion. (iPhone/iPad app by 玺 章.)

- Source: https://appshunter.io/ios/app/pdfin-pdf-edit-convert-pdf-png/id6458706761 (this page in markdown: same URL + `.md`)
- Developer: [玺 章](https://appshunter.io/developer/1523675853)
- Category: Productivity, Business
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 54 MB
- Languages: English, Japanese
- Released: 2023-08-10
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/pdfin-pdf-edit-convert-pdf-png/id6458706761/reviews.md

## What is PDFin PDF Edit Convert PDF PNG?

Digital Signature
  Add a Digital Signature to PDF by p12, etc format file
  Add a Digital Signature to the PDF by My Number Card (Japanese ID card, supports iPhone, does  not support iPad)

E-Sign (Scan and add Signature, Stamp)
  Scan a signature or stamp as a transparent background
  Set signature or stamp color, angle
  Make a stamp or signature with a transparent background
  Make a Japanese Seal with a transparent background
  Add  Signature and stamp to PDF
  Export as PDF or PNG
 
Tools
  Set PDF DPI, reduce file size
  Convert PNG, JPEG, and JPG  to PDF file
  Combine multiple files into one PDF
  Scan to PDF by camera



Eula https://github.com/SealSho/app/blob/main/eula.md

## Key features

- Digital signature insertion
- E-signature scanning and import
- Convert PNG, JPEG, JPG to PDF
- PDF compression and DPI adjustment
- Combine multiple files into one PDF
- Camera scanning to PDF

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Yearly | $1.99 | per year |
| Pro Monthly | $0.49 | per month |
| Gold ３months | $9.99 | per 3 months |
| Gold yearly | $34.99 | per year |



## Frequently asked questions about PDFin PDF Edit Convert PDF PNG

### How do I add a digital signature in PDFin?

You can add a digital signature by importing a p12 file or using your My Number Card (Japanese ID card). The app supports adding signatures and stamps with transparent backgrounds to your PDF documents.

### Can PDFin convert images to PDF?

Yes, PDFin can convert PNG, JPEG, and JPG image files into PDF documents. You can also scan documents directly to PDF using your device's camera.

### What are the subscription options for PDFin?

PDFin offers several subscription plans including Pro Monthly for $0.49, Pro Yearly for $1.99, Gold 3-months for $9.99, and Gold Yearly for $34.99.

### Does PDFin support collaboration features?

The provided description does not explicitly mention collaboration features. PDFin focuses on individual document editing, signing, and conversion tools.

### What devices is PDFin compatible with?

PDFin is available on Mac, iPhone, iPad, and iPod. It is rated for ages 4 and up.

### How often is PDFin updated?

The latest version is 6.4.6, and the app was last updated on August 26, 2025, indicating regular updates. The initial release date was August 10, 2023.

### Does PDFin have ads?

Based on the provided data, the app does not contain advertisements.

### What file formats can PDFin export to?

PDFin allows you to export your edited documents as either PDF or PNG files.

## Version history (last 5 releases)

### 6.4.6 — 2025-08-26

bug fix

### 6.4.5 — 2025-08-05

remove the stamp in signed PDF, etc

### 6.4.3 — 2025-07-18

bug fix

### 6.4.2 — 2025-06-30

bug fix

### 6.4.1 — 2025-06-18

improve performance

## More apps by 玺 章

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- [OTOTO](https://appshunter.io/ios/app/ototo/id1660434628)
- [JPKI eSign signature on PDF](https://appshunter.io/ios/app/jpki-esign-signature-on-pdf/id6458650235)

All apps by 玺 章: https://appshunter.io/developer/1523675853

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*