What this policy covers
This privacy policy explains how the mobile application PDF Compressor (the “app”) handles information when you use it. The app is published under the package name com.pdfcompressor.reduceinkb.
The short version
- Your PDF files never leave your device — all compression happens locally.
- We do not collect, store, or transmit the content of your documents.
- The app does not require an account or sign-up.
- The app shows ads through Google AdMob, which uses your device’s advertising identifier.
- The app uses Google’s Firebase Analytics and Crashlytics to understand aggregate usage and to diagnose crashes.
What we do NOT collect
- Your PDF files, their content, or any text or images inside them.
- Your name, email address, phone number, or other personal identifiers (unless you choose to send them to us through the contact form).
- Your precise location.
- Your contacts, calendar, microphone, camera input, or files other than the PDFs you choose to compress.
What stays on your device
Compressed PDFs are written to a private app folder so the app’s History screen can list your recent results and let you re-share them. Your recent jobs (file name, original and compressed size, page count, timestamp) are stored locally in an on-device database, capped at 50 entries with the oldest removed automatically. The content of your PDFs is never uploaded by us.
Permissions the app requests
File access
The app lets you pick PDF files to compress. It reads only the files you explicitly select through the system file picker and never scans your device storage for any other purpose.
Internet access
The app uses the internet only to serve advertisements (Google AdMob) and to send anonymous analytics and crash diagnostics (Google Firebase). Your PDF files and their contents are never sent over the network.
Advertising — Google AdMob
We monetize the app with Google AdMob. AdMob may collect and process the following on Google’s servers in order to serve and measure ads:
- Your device’s advertising identifier (Google Advertising ID on Android).
- General device information such as device model, OS version, language, and approximate region.
- IP address and ad interaction events.
In the European Economic Area, the UK, and Switzerland, the app presents a Google-certified consent message (Google’s User Messaging Platform) on first launch so you can choose whether ads are personalized. You can reset or remove your advertising identifier at any time in your device settings. Google’s use of advertising data is governed by Google’s own privacy policy: policies.google.com/privacy, and AdMob’s practices are described here: support.google.com/admob/answer/6128543.
Analytics & crash reporting — Google Firebase
The app uses Google Analytics for Firebase and Firebase Crashlytics to help us understand how the app is used in aggregate and to find and fix crashes. These Google services may collect:
- App usage and interaction events, session counts, and the app version.
- Device information such as model, operating-system version, language, and region.
- A Firebase installation identifier and, for analytics, your device’s advertising identifier.
- For crashes: the crash stack trace and device state at the time of the crash.
This data is processed by Google as described in Google’s privacy policy linked above. It never includes the content of your PDF files. Firebase data collection is described here: firebase.google.com/support/privacy.
Data sharing
We do not sell your data. The only parties that receive data are the Google services above (AdMob and Firebase), acting to provide advertising, analytics, and crash-diagnostics functionality on our behalf, subject to Google’s terms and privacy policy.
Children
The app is a general-audience utility and is not directed at children under the age of 13. We do not knowingly collect any personal information from children. If you believe a child has provided information, contact us and we will respond.
Data retention
Locally-stored job history stays on your device only and is capped at 50 entries. You can clear all history at any time from inside the app (History → clear icon). Uninstalling the app deletes all on-device data. Data held by Google AdMob and Firebase is retained according to Google’s policies.
Your rights
Because we do not collect personal data on our own servers, there is nothing on our side for you to access, correct, export, or delete. For data Google may hold about your device’s advertising identifier, you can manage your preferences in your device settings or via Google’s ad settings page: adssettings.google.com.
Changes to this policy
We may update this policy as the app evolves. The current version is indicated by the “Last updated” date below. Material changes will be published at this URL before they take effect in the app.
Contact
Questions about this policy or the app can be sent through our contact form. We’ll reply to the email address you provide on the form.