Privacy Policy - JoinPDF

JoinPDF

Last updated: November 9, 2026

This Privacy Policy is provided in English only.

Introduction

This Privacy Policy describes how JoinPDF (“we”, “our”, or “the app”) handles your information when you use our mobile application.

Information We Collect

1. Analytics Data

The app uses Firebase Analytics to collect anonymous usage data to improve the app experience:

• Which screens and features are used, and how often
• Counts and settings, such as the number of pages saved and the paper size or file size option chosen
• Error codes when importing, saving, or purchasing fails
• Plus purchases: which plan was bought and its price, never your payment details
• Device type and operating system version

This data is tied to a per-install identifier, never to an account. The app has no login. It cannot be used to identify you personally, and it never includes your documents, your file names, or your passwords.

2. Local Data

The following stays on your device and is never sent to us:

• Copies of the photos, PDFs, and scans you add
• Your page order, rotations, and save settings, so you can continue editing later
• The PDFs you save, until you share them or save them elsewhere
• Your Plus purchase status

Copies of what you add are kept in the app’s private storage and excluded from device backups. They are removed when you close the editor with the close button and confirm, or the next time the app starts if no unfinished work uses them. Saved PDFs waiting in the app are removed the next time the app starts, so save or share them first.

All document processing happens entirely on your device. Your photos, PDFs, and scans are never uploaded to our servers or to any third party.

Photo Library Access

The app uses the system photo picker, so it only sees the photos you choose. It cannot read the rest of your library.

On iPhone and iPad, the app asks for permission only to add pages to Photos, and only when you choose to save them there. On Android, pages you save as images go to the Pictures/JoinPDF folder of your gallery, which needs no permission.

Camera Access

The camera is used only when you choose to scan a paper document. Scanned pages go into your current project. They are not uploaded, and the app does not add them to your photos unless you save them there.

On Android, scanning uses the document scanner built into Google Play services. It opens the camera itself, so JoinPDF has no camera permission and receives only the finished page images.

File Access

The app opens PDFs and images only when you choose them in the system file picker. If a PDF is password-protected, the app asks for its password and adds an unlocked copy. The password is used once on your device and is not saved or sent anywhere.

PDF Passwords

JoinPDF can lock a saved PDF with a password you choose. The password is used on your device to lock the file. The app does not save it to storage or send it anywhere, and we cannot recover it if you forget it.

Information We Do NOT Collect

• Personal information (name, email address, phone number)
• Location data
• Contacts or calendar data
• The contents of your photos, PDFs, or scans, or the names of your files
• Your PDF passwords
• Advertising identifiers

Third-Party Services

Our app uses the following third-party services:

• Firebase Analytics (Privacy Policy)
• Google Play services document scanner (ML Kit) (Android) - Scans paper documents (Privacy Policy)
• Google Play Billing (Android) - Handles subscriptions and payments (Privacy Policy)

Advertising

JoinPDF does not display any advertisements. We do not use any advertising SDKs.

In-App Purchases

JoinPDF offers one optional upgrade, JoinPDF Plus, that lets you save any number of pages in one PDF and unlocks the smaller file size option. Combining, editing, password locking, and saving up to 3 pages per PDF are free.

Plus is an auto-renewing subscription or a one-time lifetime purchase. You can cancel a subscription at any time in your App Store or Google Play account settings.

Purchases are handled entirely by Apple (App Store) or Google (Google Play). We never see or store your payment details. The app only receives, and keeps on your device, whether your purchase or subscription is active.

Feedback by Email

The app’s feedback link opens your own email app with a new message to us. The message includes the app version, the iOS or Android version, and the device model, and you can read or change it before sending. We receive it only if you send it, and we use it only to reply and fix problems.

Data Security

Your documents never leave your device unless you share or save them elsewhere: we run no server that holds a copy. Files are protected by your device’s own storage protections. The anonymous usage events described above are sent over an encrypted connection to Firebase.

Children’s Privacy

Our app is not directed to children under 13. We do not knowingly collect personal information from children under 13.

Your Rights

• Your files stay yours: closing the editor removes the app’s copies. Your original photos and files stay where they were.
• Delete local data: uninstalling the app removes all locally stored data and stops all analytics collection
• Limit tracking: you can manage app tracking and analytics permissions in your device’s privacy settings

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with a new “Last updated” date.

Contact Us

If you have any questions about this Privacy Policy, please contact us at:

Email: support@mongdaewon.com