Free
In-App Purchases
About
Easily add digital signatures and e-signatures to your PDF documents. This app allows you to scan and import signatures, convert images to PDF, and offers tools for file size reduction and combining documents.
✓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
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What's New in PDFin PDF Edit Convert PDF PNG
6.5.6
September 17, 2026
fix color picker bug etc
7
Subscriptions & In-App Purchases
Pro Yearly
Export files, not include digit signed files
$1.991 Year
Price Updates
October 12, 2026→$1.99
November 18, 2024→$2.99
July 11, 2024→$2.99
July 5, 2024→$6.99
User reviews
Developer apps
FAQ
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.
