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CS PDF Reader - PDF Editor

INTSIG PTE · Build 3.13.8.202609030000

com.intsig.cspdf
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Static analysis completeScanned 2026-10-09 14:55 UTC

Static checks identify review items, not a guarantee of safety.

Overview

Analysis recorded

2 finding categories to review

CS PDF Reader - PDF Editor (com.intsig.cspdf) scored grade A, 98 out of 100, in a static scan of version 3.13.8.202609030000 on 2026-10-09. It has no high or critical findings, and 2 lower-severity finding categories across 4 occurrences. No tracking SDKs were recognised in the package. This is static analysis of a single build: it does not observe the app running and does not establish that any data is exposed.

Finding categories24 occurrences
High / critical0Category count
Tracking SDKs0Presence, not observed traffic
Assessment score98 / 100Grade A

Start with these findings

lowFirebase Storage bucket reference3 occurrences

Interpretation & review guidance

A Firebase Cloud Storage bucket reference (the default <project>.appspot.com). Storing user files here is normal — it's only an exposure if the Storage security rules allow public read/list, which live verification tests.

Evidence
3 recorded occurrences in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.
Open in all findingsRequest a correction
lowGoogle API key (client-shipped; restriction unverified)1 occurrence

Interpretation & review guidance

Android apps are designed to ship Google API keys in the client; Google restricts them by app signing certificate + enabled API. This is only a problem if the key is left unrestricted — presence alone is expected, not an exposure.

Evidence
1 recorded occurrence in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.
Open in all findingsRequest a correction
View all 2 categories

Privacy

20 requested permissions · 1 flagged high-risk classes.

Review privacy signals →

Build & components

89 components recorded. Certificate parsing does not validate APK signature integrity.

Inspect build evidence →
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Findings

2 categories · 4 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.

lowFirebase Storage bucket reference3 occurrences

Interpretation & review guidance

A Firebase Cloud Storage bucket reference (the default <project>.appspot.com). Storing user files here is normal — it's only an exposure if the Storage security rules allow public read/list, which live verification tests.

Evidence
3 recorded occurrences in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.

Evidence preview

Evidence type
Static string match
Representative location
resources.arsc
Recorded match
Pattern recorded; identifying value redacted.
Detector rule
firebase_storage_bucket
Recorded file locations
  • resources.arsc

3 recorded findings have inspectable metadata. Duplicate matches may share a representative location.

Review whether this belongs to intended app functionality or a bundled library. A static match does not establish runtime impact.

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Search recorded evidence and save private review notes with Pro. $99/month plus applicable tax.

Link to categoryRequest a correction
lowGoogle API key (client-shipped; restriction unverified)1 occurrence

Interpretation & review guidance

Android apps are designed to ship Google API keys in the client; Google restricts them by app signing certificate + enabled API. This is only a problem if the key is left unrestricted — presence alone is expected, not an exposure.

Evidence
1 recorded occurrence in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.

Evidence preview

Evidence type
Static string match
Representative location
resources.arsc
Recorded match
AIza•••••••• (21–40 chars, redacted)
Detector rule
google_api_key
Recorded file locations
  • resources.arsc

1 recorded findings have inspectable metadata. Duplicate matches may share a representative location.

Review whether this belongs to intended app functionality or a bundled library. A static match does not establish runtime impact.

Preview evidence and Pro tools

Search recorded evidence and save private review notes with Pro. $99/month plus applicable tax.

Link to categoryRequest a correction

Privacy signals

Capabilities and bundled software do not prove that data was collected or transmitted.

Requested permissions20
Flagged high-risk classes1
Detected SDKs0

Camera

Requested permission inventory (20)
  • android.permission.ACCESS_ADSERVICES_AD_ID
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION
  • android.permission.ACCESS_ADSERVICES_TOPICS
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.ACCESS_WIFI_STATE
  • android.permission.CAMERA
  • android.permission.CHANGE_NETWORK_STATE
  • android.permission.FOREGROUND_SERVICE
  • android.permission.INTERNET
  • android.permission.MANAGE_EXTERNAL_STORAGE
  • android.permission.POST_NOTIFICATIONS
  • android.permission.WAKE_LOCK
  • com.android.vending.BILLING
  • com.asus.msa.SupplementaryDID.ACCESS
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • com.google.android.gms.permission.AD_ID
  • com.huawei.appmarket.service.commondata.permission.GET_COMMON_DATA
  • com.intsig.cspdf.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • com.samsung.android.mapsagent.permission.READ_APP_INFO
  • freemme.permission.msa

Data collection & flow (privacy signal, not part of the grade)

Data the app can access
Camera
Camera
Photos & files
StorageAll-files accessStorage (write)
Where it can go
Third parties present
No analytics/advertising SDKs detected.
  • Personal-data permissions/identifiers appear on-device, but no third-party analytics/advertising SDKs were detected that would receive them.

This maps what the app can access (permissions it requests, identifier APIs its code references) to the third parties bundled in it. It reflects capability and SDK presence — not proof that a specific value was transmitted.

Data Safety comparison not recorded.

No SDKs detected by this scan.

Build & components

Scanned build 3.13.8.202609030000. Store metadata may describe a newer release.

APK SHA-256808f058a53f521454d9b658d19f520d7bbb6d50f5f0bb946da940b8399af4e8e

Signing certificate (who signed this build — factual, not part of the grade)

Signer
IntSig Information Co.Ltd self-signed
Scheme
V3V2
Key
RSA 2048-bit
Algorithm
sha256WithRSA
Validity
2022-08-08 → 2122-07-15
Cert SHA-256
c4:d3:e4:db:bb:93:d8:4e:ef:49:75:48:48:4c:df:2e:7c:f4:4c:51:08:e7:f0:fc:8a:66:98:c1:5c:b2:89:c1

The certificate fingerprint identifies the parsed signing certificate. Knowing this public fingerprint does not establish ownership or validate the APK signature.

Signature integrity: not established by certificate parsing.

Component inventory

89 components. Advisory matching covers a curated set; no match is not proof that a component is vulnerability-free.

Bundled components and recorded advisory matches
ComponentVersionAdvisory matches
androidx.activity:activity1.6.1None recorded
androidx.activity:activity-ktx1.6.1None recorded
androidx.annotation:annotation-experimental1.4.0None recorded
androidx.appcompat:appcompat1.6.1None recorded
androidx.appcompat:appcompat-resources1.6.1None recorded
androidx.arch.core:core-runtime2.1.0None recorded
androidx.autofill:autofill1.0.0None recorded
androidx.browser:browser1.8.0None recorded
androidx.cardview:cardview1.0.0None recorded
androidx.compose.animation:animation1.1.1None recorded
androidx.compose.animation:animation-core1.1.1None recorded
androidx.compose.foundation:foundation1.2.0None recorded
androidx.compose.foundation:foundation-layout1.2.0None recorded
androidx.compose.material3:material31.0.1None recorded
androidx.compose.material:material-icons-core1.0.2None recorded
androidx.compose.material:material-ripple1.0.0None recorded
androidx.compose.runtime:runtime1.3.3None recorded
androidx.compose.runtime:runtime-saveable1.3.3None recorded
androidx.compose.ui:ui1.3.3None recorded
androidx.compose.ui:ui-geometry1.3.3None recorded
androidx.compose.ui:ui-graphics1.3.3None recorded
androidx.compose.ui:ui-text1.3.3None recorded
androidx.compose.ui:ui-tooling-preview1.3.3None recorded
androidx.compose.ui:ui-unit1.3.3None recorded
androidx.compose.ui:ui-util1.3.3None recorded
androidx.coordinatorlayout:coordinatorlayout1.1.0None recorded
androidx.core:core1.9.0None recorded
androidx.core:core-ktx1.9.0None recorded
androidx.core:core-splashscreen1.0.0None recorded
androidx.cursoradapter:cursoradapter1.0.0None recorded
androidx.customview:customview1.1.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.databinding:baseAdapters4.2.2None recorded
androidx.databinding:library4.2.2None recorded
androidx.databinding:viewbinding8.9.3None recorded
androidx.datastore:datastore1.1.3None recorded
androidx.datastore:datastore-core1.1.3None recorded
androidx.datastore:datastore-preferences1.1.3None recorded
androidx.documentfile:documentfile1.0.0None recorded
androidx.drawerlayout:drawerlayout1.1.1None recorded
androidx.dynamicanimation:dynamicanimation1.0.0None recorded
androidx.emoji2:emoji21.2.0None recorded
androidx.emoji2:emoji2-views-helper1.2.0None recorded
androidx.exifinterface:exifinterface1.3.3None recorded
androidx.fragment:fragment1.5.5None recorded
androidx.fragment:fragment-ktx1.5.5None recorded
androidx.interpolator:interpolator1.0.0None recorded
androidx.legacy:legacy-support-core-utils1.0.0None recorded
androidx.lifecycle:lifecycle-livedata2.3.1None recorded
androidx.lifecycle:lifecycle-livedata-core2.5.1None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.5.1None recorded
androidx.lifecycle:lifecycle-livedata-ktx2.3.1None recorded
androidx.lifecycle:lifecycle-process2.4.1None recorded
androidx.lifecycle:lifecycle-runtime2.5.1None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.5.1None recorded
androidx.lifecycle:lifecycle-service2.3.1None recorded
androidx.lifecycle:lifecycle-viewmodel2.5.1None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.5.1None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.5.1None recorded
androidx.loader:loader1.0.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.0.0None recorded
androidx.print:print1.0.0None recorded
androidx.privacysandbox.ads:ads-adservices1.1.0-beta11None recorded
androidx.privacysandbox.ads:ads-adservices-java1.1.0-beta11None recorded
androidx.profileinstaller:profileinstaller1.2.0None recorded
androidx.recyclerview:recyclerview1.2.1None recorded
androidx.room:room-ktx2.4.0None recorded
androidx.room:room-runtime2.4.0None recorded
androidx.savedstate:savedstate1.2.0None recorded
androidx.savedstate:savedstate-ktx1.2.0None recorded
androidx.sqlite:sqlite2.2.0None recorded
androidx.sqlite:sqlite-framework2.2.0None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.swiperefreshlayout:swiperefreshlayout1.1.0None recorded
androidx.tracing:tracing1.3.0None recorded
androidx.transition:transition1.2.0None recorded
androidx.vectordrawable:vectordrawable1.1.0None recorded
androidx.vectordrawable:vectordrawable-animated1.1.0None recorded
androidx.versionedparcelable:versionedparcelable1.1.1None recorded
androidx.viewpager2:viewpager21.0.0None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.window:window1.0.0-beta04None recorded
androidx.window:window-java1.0.0-beta04None recorded
androidx.work:work-runtime2.7.0None recorded
com.google.android.material:material1.9.0None recorded
com.google.dagger:dagger2.51None recorded
kotlinx:coroutines_android1.6.4None recorded
kotlinx:coroutines_core1.9.0None recorded
kotlinx:coroutines_play_services1.9.0None recorded
Export SBOM
About this app · store information

About this app

PDF converter & PDF editor: read and annotate PDF, e-sign, sync with CamScanner

Content ratingEveryone
Download size69.5 MB
Privacy policyPublished →
Developer sitewww.cspdf.net

Screenshots

App screenshotApp screenshotApp screenshotApp screenshotApp screenshotApp screenshot

Scan history

Each row is an observed scan. Gaps between scans do not establish how long a finding existed.

Scanned (UTC)BuildScoreGrade
2026-10-09 14:55 UTC3.13.8.20260903000098A
2026-10-02 13:12 UTC3.13.8.20260903000098A
2026-09-13 16:21 UTC3.13.7.20260403000098A
2026-09-06 04:16 UTC3.13.7.20260403000098A

View changes between the last two scans →

Export & share

Exports describe the recorded assessment. Signed evidence proves origin and integrity, not completeness or safety.

SARIFFindings CSVCoverage JSONSigned evidenceSBOM

Coverage & gap matrix · Verify signed evidence

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apk-scanner.com exposure grade
Markdown
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HTML
<a href="https://apk-scanner.com/app/com.intsig.cspdf"><img src="https://apk-scanner.com/app/com.intsig.cspdf/badge.svg" alt="apk-scanner.com exposure grade" height="20"></a>

Grades can move when a new version is scanned or when a detector is corrected. If you would rather publish a grade that cannot change under you, link a signed Proof Capsule instead.

API users can request authenticated, scan-specific exports at /v1/scans/d4c1d1a6-5622-4ecf-810e-2e9327457e40/findings.sarif (also coverage.json and proof.json).

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