#  PDF Reader

状态：active
Platform：android
Package：com.first.pdfreader
Version：unknown
Opportunity：2026-06-10-pdf-reader-all-pdf-scanner

## 摘要

- 包类型：apk，inner APK 数：1
- 引擎 / 框架：native
- SDK 线索：firebase
- Endpoint candidates：2
- 结论口径：本报告只基于静态 ZIP / Manifest / 字符串证据；不代表真实运行路径已验证。

## 直接证据

- [high] Manifest package id is com.first.pdfreader（source: `AndroidManifest.xml`，status: `verified`）
- [high] Manifest declares 11 permissions（source: `AndroidManifest.xml`，status: `verified`）
- [high] Engine/framework markers: native（source: `APK file inventory`，status: `verified`）
- [high] Static strings include 2 endpoint candidates（source: `Text/string scan`，status: `verified`）
- [high] Package contains 26 native libraries（source: `APK file inventory`，status: `verified`）

## 推断

- [medium] SDK markers suggest: firebase（source: `Manifest, filenames, and text strings`，status: `inferred`）

## 权限和组件

### 权限

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.first.pdfreader.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`

### 组件

- Activities：com.blankj.utilcode.util.UtilsTransActivity, com.blankj.utilcode.util.UtilsTransActivity4MainProcess, com.facebook.CustomTabActivity, com.facebook.CustomTabMainActivity, com.facebook.FacebookActivity, com.google.android.gms.common.api.GoogleApiActivity, com.google.mlkit.vision.documentscanner.internal.GmsDocumentScanningDelegateActivity, com.mapp.tylerpdf.ui.activity.animation.AnimationActivity, com.mapp.tylerpdf.ui.activity.convert.ConvertActivity, com.mapp.tylerpdf.ui.activity.file_access.FileAccessActivity, com.mapp.tylerpdf.ui.activity.files_type.FilesTypeActivity, com.mapp.tylerpdf.ui.activity.fun_selection.FunSelectionActivity, com.mapp.tylerpdf.ui.activity.image_select.ImageSelectActivity, com.mapp.tylerpdf.ui.activity.language.LanguageActivity, com.mapp.tylerpdf.ui.activity.main.MainActivity, com.mapp.tylerpdf.ui.activity.pdf_preview.PdfPreviewActivity, com.mapp.tylerpdf.ui.activity.preview.PreviewActivity, com.mapp.tylerpdf.ui.activity.scan_complete.ScanCompleteActivity, com.mapp.tylerpdf.ui.activity.search.SearchActivity, com.mapp.tylerpdf.ui.activity.select_all.SelectAllActivity, com.mapp.tylerpdf.ui.activity.splash.SplashActivity, com.mapp.tylerpdf.ui.activity.transparent.TransparentActivity, com.pairip.licensecheck.LicenseActivity
- Services：androidx.room.MultiInstanceInvalidationService, com.blankj.utilcode.util.MessengerUtils$ServerService, com.google.android.datatransport.runtime.backends.TransportBackendDiscovery, com.google.android.datatransport.runtime.scheduling.jobscheduling.JobInfoSchedulerService, com.google.android.gms.measurement.AppMeasurementJobService, com.google.android.gms.measurement.AppMeasurementService, com.google.firebase.components.ComponentDiscoveryService, com.google.firebase.messaging.FirebaseMessagingService, com.google.mlkit.common.internal.MlKitComponentDiscoveryService
- Receivers：androidx.profileinstaller.ProfileInstallReceiver, com.facebook.AuthenticationTokenManager$CurrentAuthenticationTokenChangedBroadcastReceiver, com.facebook.CurrentAccessTokenExpirationBroadcastReceiver, com.google.android.datatransport.runtime.scheduling.jobscheduling.AlarmManagerSchedulerBroadcastReceiver, com.google.android.gms.measurement.AppMeasurementReceiver, com.google.firebase.iid.FirebaseInstanceIdReceiver, com.mapp.tylerpdf.receiver.NotificationDeleteReceiver, com.mapp.tylerpdf.receiver.WidgetAddedReceiver
- Providers：androidx.core.content.FileProvider, androidx.startup.InitializationProvider, com.adjust.sdk.SystemLifecycleContentProvider, com.blankj.utilcode.util.UtilsFileProvider, com.facebook.internal.FacebookInitProvider, com.google.firebase.provider.FirebaseInitProvider, com.google.mlkit.common.internal.MlKitInitProvider, com.pairip.licensecheck.LicenseContentProvider, me.jessyan.autosize.InitProvider

## SDK / Endpoint

### SDK

- `firebase`

### Endpoint candidates

- http://www.apache.org/licenses/
- http://www.apache.org/licenses/LICENSE-2.0

## Warnings

- binary AndroidManifest.xml decoded with apktool

## 下一步

- 真机/模拟器验证 onboarding、paywall、首个可感知价值和崩溃路径。
- 把 endpoint candidates 与 HAR / MITM / Frida 动态证据对齐，避免只凭静态字符串下结论。
- 多版本对比权限、SDK、endpoint、native libs 和资源路径变化。