PaperKnife+

Privacy-first PDF utility: merge, split, rotate, and protect

AppID:	com.paperknifeplus.app
Author:	potatameister
License:	GPL-3.0-or-later
Donation:	Webpage
InRepoSince:	2026-04-02
LastRepoUpdate:	2026-05-23
LastAppUpdate:	2026-05-23
LastVersion:	1.1
Categories:	Office
APK source:	Github
Google Play:	Check if it's there

PaperKnife+ is a privacy-first PDF utility for Android that works 100% offline.

Features:

Merge & Split: Combine PDFs or extract pages visually
Secure: Add or remove passwords (100% locally)
Convert: Convert Images to PDF and Export PDF pages as Images (ZIP)
Edit: Rotate and Rearrange pages with ease
And more!

No internet permission, no trackers, zero servers. All processing happens on your device.

Built with Jetpack Compose and Kotlin for a modern, smooth experience.

WhatsNew:

PaperKnife+ v1.1:
- Fixed typo in Unlock tool description
- Fixed history showing original file name instead of output file name
- Fixed merge tool rejecting same file added multiple times
- Fixed watermark transparency not applied to output PDF
- Added export saved signature as PNG

Download Metadata Website Source Issues ChangeLog

While you can download the APKs here directly, you should preferably use an F-Droid client so the app stays up-to-date on your device. Some clients have this repo enabled by default, e.g. Neo Store, Droid-ify, or, of course, the IzzyOnDroid client by Sunil. With others (like the official client) you'll have to add this repo manually (see the hint on top of the package list for how to do that).

Packages

Version 1.1 (2026-05-23)

Android Versions:

Target: 14.0
MinVer: 7.0

Permissions:

Malware-Check:Passed

12 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
Jetpack Compose (Development Framework)
a framework to define UIs programmatically with composable functions that describe its shape and data dependencies.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Coil (Utility)
an image loading library for Android backed by Kotlin Coroutines.
OkHttp (Utility)
OkHttp is an HTTP+HTTP/2 client for Android and Java applications.
PdfBox-Android (Utility)
a port of Apache's PdfBox library to be usable on Android.
Kotlin (Utility)
The Kotlin Programming Language

Payment Modules:

None found
The Kotlin Programming Language

Ads & Analytics:

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The Kotlin Programming Language

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Version 1.0 (2026-04-02)

Android Versions:

Target: 14.0
MinVer: 7.0

Permissions:

Malware-Check:Passed

12 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
Jetpack Compose (Development Framework)
a framework to define UIs programmatically with composable functions that describe its shape and data dependencies.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Coil (Utility)
an image loading library for Android backed by Kotlin Coroutines.
OkHttp (Utility)
OkHttp is an HTTP+HTTP/2 client for Android and Java applications.
PdfBox-Android (Utility)
a port of Apache's PdfBox library to be usable on Android.
Kotlin (Utility)
The Kotlin Programming Language

Payment Modules:

None found
The Kotlin Programming Language

Ads & Analytics:

None found
The Kotlin Programming Language

Download (7.8 M)