CS PDF Reader - PDF Editor
v3.13.6.202601200000 · 24.5 MB · code 31361
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File information
UpdatedJan 21, 2026
PublishedJan 15, 2023
Packagecom.intsig.cspdf
Versionv3.13.6.202601200000 (31361)
Size24.5 MB
MD564de281ba4630a1132c7178c0ff957a6
Min SDK26
ABIsx86, x86-64, armeabi, arm64-v8a
Malware scanTRUSTED
Signature SHA1A8:E3:C1:44:EB:73:29:17:CA:A9:D7:13:4E:8F:5C:56:17:FF:AF:3D
SignerCN=Intsig, OU=IntSig Information Co.Ltd, O=IntSig Information Co.Ltd, L=Shanghai, ST=Shanghai, C=CN
Total downloads10,000,000
This version10,000,000
DeveloperCamSoft Information
Age ratingEveryone
What's new in v3.13.6.202601200000
Fix the issue where PDFs fail to open
Security scan
TRUSTED
- Developer signature verified 2026-01-21
- Signature SHA1 A8:E3:C1:44:EB:73:29:17:CA:A9:D7:13:4E:8F:5C:56:17:FF:AF:3D
- File MD5 64de281ba4630a1132c7178c0ff957a6
How to install CS PDF Reader - PDF Editor v3.13.6.202601200000 on Android 8.0 Oreo+
Takes about 2 minutes. You'll need roughly 24.5 MB of free storage.
- Grab com.intsig.cspdf_31361.apk — hit the Download button above (24.5 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 64de281ba4630a11…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.intsig.cspdf_31361.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Intsig, OU=IntSig Information Co.Ltd, O=IntSig Information Co.Ltd, L=Shanghai, ST=Shanghai, C=CN. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open CS PDF Reader - PDF Editor — tap Open on the install screen, or find the CS PDF Reader - PDF Editor icon in your app drawer (this build targets x86/x86-64/armeabi/arm64-v8a devices).
Common install errors for CS PDF Reader - PDF Editor
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 8.0 Oreo or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships x86/x86-64/armeabi/arm64-v8a native code. Devices with a different CPU will reject it.