Android Articles | Nutrient Blog

Reinhard Hafenscher

Shantanu Methikar

Digital signing on Android (2026)

How digital signing and contained signatures on Android work.

Add PDFs to any mobile app: A framework-by-framework guide

Hulya Masharipov

Add PDFs to any mobile app: A framework-by-framework guide

Build an Android PDF viewer with Nutrient (step-by-step)

Jonathan D. Rhyne

Build an Android PDF viewer with Nutrient (step-by-step)

How to view PDFs on Android

Tomáš Šurín

How to view PDFs on Android

Persist PDF zoom with Nutrient

Ferdinand Bada

Persist PDF zoom with Nutrient

How to test REST API clients in Android apps

Tomáš Šurín

How to test REST API clients in Android apps

From experienced engineer to AI beginner: My unexpected journey

Amit Nayar

From experienced engineer to AI beginner: My unexpected journey

Edge-to-edge support on Android 15+

Rafał Wesołowski

Edge-to-edge support on Android 15+

Jetpack Compose: The ultimate guide

Omar Talaat

Jetpack Compose: The ultimate guide

From Zero to AI: Building custom chat interfaces with Nutrient on Android

Akshay Sharma

From Zero to AI: Building custom chat interfaces with Nutrient on Android

Handling fatal errors in Android

Michael Kellner

Handling fatal errors in Android

Use vector stamps instead of blurry shapes

Rad Azzouz

Use vector stamps instead of blurry shapes

AI Assistant for iOS and Android: Intelligent document interaction, now in your users’ pockets

Bradley Hearn

AI Assistant for iOS and Android: Intelligent document interaction, now in your users’ pockets

Pairs and triples in Kotlin (and why you shouldn't use them)

Menil Vukovic

Pairs and triples in Kotlin (and why you shouldn't use them)

What are configuration changes in Android?

Reinhard Hafenscher

What are configuration changes in Android?

Opening a PDF in a Jetpack Compose application

William Barbosa

Opening a PDF in a Jetpack Compose application

Best PDF viewer for Android: How to create a PDF on Android

Hulya Masharipov

Best PDF viewer for Android: How to create a PDF on Android

Drag-to-reorder with Jetpack Compose

Ferdinand Bada

Drag-to-reorder with Jetpack Compose

The rise of generative AI on mobile devices

Jonathan D. Rhyne

The rise of generative AI on mobile devices

Room database for Kotlin Multiplatform projects

Akshay Sharma

Room database for Kotlin Multiplatform projects

Android 2024.1 update: Content editing and signatures

Nutrient

Android 2024.1 update: Content editing and signatures

Advanced Techniques for React Native UI Components

Jonathan D. Rhyne

Advanced Techniques for React Native UI Components

PSPDFKit 8.9 for Android Revamps Advanced Digital Signatures

Amit Nayar

PSPDFKit 8.9 for Android Revamps Advanced Digital Signatures

Kotlin Non-Nullable Pitfall

Michael Kellner

Kotlin Non-Nullable Pitfall

How to add annotations to PDFs using the Android library

Teja Tatimatla

How to add annotations to PDFs using the Android library

PSPDFKit 8.8 for Android Enhances Measurement Tools

Ferdinand Bada

PSPDFKit 8.8 for Android Enhances Measurement Tools

How to open a PDF in Flutter using advance_pdf_viewer2

Reinhard Hafenscher

How to open a PDF in Flutter using advance_pdf_viewer2

PSPDFKit 8.7 for Android Adds Content Editor

Amit Nayar

PSPDFKit 8.7 for Android Adds Content Editor

Run a Flutter App on an Emulator inside Docker

Julius Kato Mutumba

Run a Flutter App on an Emulator inside Docker

PSPDFKit 8.5 for Android

Amit Nayar

PSPDFKit 8.5 for Android

Road to Polyglot Development

Tomáš Šurín

Road to Polyglot Development

How to handle NDK crashes

Julius Kato Mutumba

How to handle NDK crashes

Kotlin Context Receivers — A Preview

Michael Kellner

Kotlin Context Receivers — A Preview

How to sign a PDF on Android with Nutrient's signature library

Teja Tatimatla

How to sign a PDF on Android with Nutrient's signature library

How to build an Android image viewer with Nutrient library

Teja Tatimatla

How to build an Android image viewer with Nutrient library

How to Convert a Word Document to PDF on Android

Julius Kato Mutumba

How to Convert a Word Document to PDF on Android

PDF measurement tools for architects and engineers

Amit Nayar

PDF measurement tools for architects and engineers

PSPDFKit 8.3 for Android: PAdES Support

Simone Arpe

PSPDFKit 8.3 for Android: PAdES Support

Cross-platform mobile frameworks — An iOS engineer's perspective

Rad Azzouz

Cross-platform mobile frameworks — An iOS engineer's perspective

How to Load OBJ Files with MTL in Android

Julius Kato Mutumba

How to Load OBJ Files with MTL in Android

PSPDFKit 8.2 for Android Adds Cloud Annotation Tool

Simone Arpe

PSPDFKit 8.2 for Android Adds Cloud Annotation Tool

Java-to-Kotlin Conversion Best Practices

Michael Kellner

Java-to-Kotlin Conversion Best Practices

Stamp and sign documents programmatically

Amit Nayar

Stamp and sign documents programmatically

Download and display PDFs in Flutter

Akshat Patel

Download and display PDFs in Flutter

How we expose Jetpack Compose APIs

William Barbosa

How we expose Jetpack Compose APIs

Autosizing Fonts for Android EditTexts

Michael Kellner

Autosizing Fonts for Android EditTexts

PSPDFKit 8 for Android: Signatures & Compose

David Schreiber-Ranner

PSPDFKit 8 for Android: Signatures & Compose

Introducing Jetpack Compose support

Gabriel Bunselmeyer

Introducing Jetpack Compose support

Refactor Git branches with rebase and autosquash

David Schreiber-Ranner

Refactor Git branches with rebase and autosquash

PSPDFKit 7 for Android: Instant Comments added

David Schreiber-Ranner

PSPDFKit 7 for Android: Instant Comments added

How to Open a PDF in React Native Using the Document Picker

Rad Azzouz

How to Open a PDF in React Native Using the Document Picker

Creating and Filling Out Forms Programmatically on Android

Simone Arpe

Creating and Filling Out Forms Programmatically on Android

Avoiding Primitive Type Saturation in Kotlin

William Barbosa

Avoiding Primitive Type Saturation in Kotlin

Why Should You Care about Manual Testing?

Tomáš Šurín

Why Should You Care about Manual Testing?

Embedding Audio in PDFs: Sound Annotations in Depth

Tomáš Šurín

Embedding Audio in PDFs: Sound Annotations in Depth

How to customize our Flutter PDF SDK

Reinhard Hafenscher

How to customize our Flutter PDF SDK

Converting an Image to PDF in Kotlin

Reinhard Hafenscher

Converting an Image to PDF in Kotlin

PSPDFKit 6.6 for Android

David Schreiber-Ranner

PSPDFKit 6.6 for Android

Performing OCR on Android

Reinhard Hafenscher

Performing OCR on Android

How Updating to Kotlin 1.4 Broke Our Linter Rules

David Schreiber-Ranner

How Updating to Kotlin 1.4 Broke Our Linter Rules

How to Create Multiple Redactions with Search on Android

Tomáš Šurín

How to Create Multiple Redactions with Search on Android

Adding a persistent annotation sidebar

Reinhard Hafenscher

Adding a persistent annotation sidebar

Optical Character Recognition in Scanned PDFs

Nick Winder

Optical Character Recognition in Scanned PDFs

PSPDFKit 6.5 for Android: Android PDF Library

David Schreiber-Ranner

PSPDFKit 6.5 for Android: Android PDF Library

PSPDFKit 6.4 for Android

David Schreiber-Ranner

PSPDFKit 6.4 for Android

Think First, Code Later

Tomáš Šurín

Think First, Code Later

How to Reduce Flakiness in Automated UI Testing on Android

Reinhard Hafenscher

How to Reduce Flakiness in Automated UI Testing on Android

PSPDFKit 6.3 for Android

David Schreiber-Ranner

PSPDFKit 6.3 for Android

Change Android themes with circular animations

Simone Arpe

Change Android themes with circular animations

PSPDFKit 6.2 for Android

David Schreiber-Ranner

PSPDFKit 6.2 for Android

Inserting an Image into a PDF on Android

Reinhard Hafenscher

Inserting an Image into a PDF on Android

Filtering Tests in Android

Ivan Skoric

Filtering Tests in Android

PSPDFKit 6.1 for Android

David Schreiber-Ranner

PSPDFKit 6.1 for Android

Our Journey from Genymotion to the Android Emulator

David Schreiber-Ranner

Our Journey from Genymotion to the Android Emulator

Persisting the Tabs State on Android

Tomáš Šurín

Persisting the Tabs State on Android

Improving keyboard accessibility in our Android SDK

Reinhard Hafenscher

Improving keyboard accessibility in our Android SDK

Convert a PDF to an Image on Android

Tomáš Šurín

Convert a PDF to an Image on Android

PSPDFKit 6 for Android

David Schreiber-Ranner

PSPDFKit 6 for Android

The Android Drag-and-Drop Framework in Practice

Ivan Skoric

The Android Drag-and-Drop Framework in Practice

Add a watermark to a PDF on Android

Reinhard Hafenscher

Add a watermark to a PDF on Android

Understanding the Gradle Build System

Simone Arpe

Understanding the Gradle Build System

Merge PDF Documents on Android

Reinhard Hafenscher

Merge PDF Documents on Android

Challenges of Using Emojis with C++

Patrik Weiskircher

Challenges of Using Emojis with C++

What Is an Intent?

Reinhard Hafenscher

What Is an Intent?

Dealing with large memory requirements on Android

Tomáš Šurín

Dealing with large memory requirements on Android

NDK Debugging

Tomáš Šurín

NDK Debugging

How Do I Fix NetworkOnMainThreadException?

Reinhard Hafenscher

How Do I Fix NetworkOnMainThreadException?

The role of Nutrient as a PDF processor

Oscar Swanros

The role of Nutrient as a PDF processor

Performance Evaluation of Linked Lists

Simone Arpe

Performance Evaluation of Linked Lists

PSPDFKit 5.5 for Android

David Schreiber-Ranner

PSPDFKit 5.5 for Android

The Soft Keyboard on Android

Anastasiia Zhuravleva

The Soft Keyboard on Android

Retaining Objects Using a Fragment

Reinhard Hafenscher

Retaining Objects Using a Fragment

A Gentle Introduction to RxJS

William Meleyal

A Gentle Introduction to RxJS

Problems with Nullability Annotations

David Schreiber-Ranner

Problems with Nullability Annotations

Understanding Android Dimensions

Anastasiia Zhuravleva

Understanding Android Dimensions

PSPDFKit 5.4 for Android

David Schreiber-Ranner

PSPDFKit 5.4 for Android

Gradle Task Configuration Avoidance in Android Builds

David Schreiber-Ranner

Gradle Task Configuration Avoidance in Android Builds

How to Use Android App Bundles

Anastasiia Zhuravleva

How to Use Android App Bundles

Kotlin Coroutines

Reinhard Hafenscher

Kotlin Coroutines

Java 8 in Android Apps

Tomáš Šurín

Java 8 in Android Apps

Getting started with Nutrient Flutter SDK

Rad Azzouz

Getting started with Nutrient Flutter SDK

Handling Nullability in Your Code

David Schreiber-Ranner

Handling Nullability in Your Code

PSPDFKit 5.3 for Android

David Schreiber-Ranner

PSPDFKit 5.3 for Android

Using ViewModels to retain state on Android

Ivan Skoric

Using ViewModels to retain state on Android

Incremental and Full Save in PDFs

Patrik Weiskircher

Incremental and Full Save in PDFs

Sharing Business Logic Using React Native

Reinhard Hafenscher

Sharing Business Logic Using React Native

Android Debug Bridge Tricks and Tips

Tomáš Šurín

Android Debug Bridge Tricks and Tips

PSPDFKit 5.2 for Android

David Schreiber-Ranner

PSPDFKit 5.2 for Android

Saving the Activity State

Reinhard Hafenscher

Saving the Activity State

Using the Bottom Navigation View in Android

Ivan Skoric

Using the Bottom Navigation View in Android

Inspecting APK Files

Tomáš Šurín

Inspecting APK Files

PSPDFKit 5.1 for Android

David Schreiber-Ranner

PSPDFKit 5.1 for Android

External storage permissions on Android

Simone Arpe

External storage permissions on Android

How to Increase the Logcat Buffer Size

Nick Winder

How to Increase the Logcat Buffer Size

Rendering Tests Using Robolectric

Tomáš Šurín

Rendering Tests Using Robolectric

PSPDFKit 5 for Android

David Schreiber-Ranner

PSPDFKit 5 for Android

What are Kotlin contracts and how are they useful?

Anastasiia Zhuravleva

What are Kotlin contracts and how are they useful?

Using paths to draw shapes with borders

Tomáš Šurín

Using paths to draw shapes with borders

Examples for Using Our Frameworks

Christoph Mantler

Examples for Using Our Frameworks

PSPDFKit 4.8 for Android

David Schreiber-Ranner

PSPDFKit 4.8 for Android

RxJava for Multi-Level Data Retrieval

Reinhard Hafenscher

RxJava for Multi-Level Data Retrieval

How I Got Started with Flutter

Simone Arpe

How I Got Started with Flutter

Moving Your Gradle Build Scripts to Kotlin

David Schreiber-Ranner

Moving Your Gradle Build Scripts to Kotlin

PSPDFKit 4.7 for Android

David Schreiber-Ranner

PSPDFKit 4.7 for Android

Tips for Designing an Android Library

Ivan Skoric

Tips for Designing an Android Library

How to Embed Files Using File Annotations

Rad Azzouz

How to Embed Files Using File Annotations

PSPDFKit 4.6 for Android

David Schreiber-Ranner

PSPDFKit 4.6 for Android

Rendering PDF Previews

Reinhard Hafenscher

Rendering PDF Previews

Async Stacktraces in Android Studio

David Schreiber-Ranner

Async Stacktraces in Android Studio

RxJava Is Async yet Blocking

David Schreiber-Ranner

RxJava Is Async yet Blocking

The Subtle Art of Real-Time Debugging With Android Studio

Simone Arpe

The Subtle Art of Real-Time Debugging With Android Studio

Hints for Beginners Navigating Around New Code

Anastasiia Zhuravleva

Hints for Beginners Navigating Around New Code

Failable Methods with Djinni

Daniel Demiss

Failable Methods with Djinni

Using Kotlin to Make the PSPDFKit API Even Better

Reinhard Hafenscher

Using Kotlin to Make the PSPDFKit API Even Better

PSPDFKit 4.4 for Android

David Schreiber-Ranner

PSPDFKit 4.4 for Android

React Native UI Component for Android

Reinhard Hafenscher

React Native UI Component for Android

Rendering PDFs on Android

Ivan Skoric

Rendering PDFs on Android

Localization at PSPDFKit

Christoph Mantler

Localization at PSPDFKit

Android Studio Shortcuts: How to Boost Your Productivity

Simone Arpe

Android Studio Shortcuts: How to Boost Your Productivity

PSPDFKit 4.3 for Android

David Schreiber-Ranner

PSPDFKit 4.3 for Android

Simple Kotlin Tips for Beginners

Anastasiia Zhuravleva

Simple Kotlin Tips for Beginners

PSPDFKit 4.1 for Android

David Schreiber-Ranner

PSPDFKit 4.1 for Android

Make Android Animations Reactive with VanGogh

Ivan Skoric

Make Android Animations Reactive with VanGogh

PSPDFKit 4.0 for Android

David Schreiber-Ranner

PSPDFKit 4.0 for Android

Secure Media Playback on Android

Ivan Skoric

Secure Media Playback on Android

PSPDFKit 3.3 for Android

David Schreiber-Ranner

PSPDFKit 3.3 for Android

PSPDFKit 3.2 for Android

Simone Arpe

PSPDFKit 3.2 for Android

50 Shaders of Android: Drawing on Canvas

Simone Arpe

50 Shaders of Android: Drawing on Canvas

PSPDFKit 3.1 for Android

Simone Arpe

PSPDFKit 3.1 for Android

Creating Better User Experiences with Animations and Lottie

Samo Korošec

Creating Better User Experiences with Animations and Lottie

PSPDFKit 3.0 for Android

Tomáš Šurín

PSPDFKit 3.0 for Android

Writing Concise Code with Kotlin and RxJava

David Schreiber-Ranner

Writing Concise Code with Kotlin and RxJava

How to Fix a Bug, Blindfolded.

David Schreiber-Ranner

How to Fix a Bug, Blindfolded.

PSPDFKit 2.9 for Android

Tomáš Šurín

PSPDFKit 2.9 for Android

Super Fast Builds Using distcc

James Swift

Super Fast Builds Using distcc

PSPDFKit 2.8 for Android

Jernej Virag

PSPDFKit 2.8 for Android

A clean status bar with Android System UI and QuickDemo

David Schreiber‑Ranner

A clean status bar with Android System UI and QuickDemo

Restoring State in Android MVP Architecture

Ivan Skoric

Restoring State in Android MVP Architecture

PSPDFKit 2.7 for Android

Jernej Virag

PSPDFKit 2.7 for Android

Running Tests with Clang's AddressSanitizer

Peter Steinberger

Running Tests with Clang's AddressSanitizer

Android animations powered by RxJava

Ivan Skoric

Android animations powered by RxJava

PSPDFKit 2.6 for Android

Jernej Virag

PSPDFKit 2.6 for Android

PSPDFKit 2.5 for Android

Jernej Virag

PSPDFKit 2.5 for Android

How to build a screen reader

David Schreiber‑Ranner

How to build a screen reader

PSPDFKit 2.4 for Android

Jernej Virag

PSPDFKit 2.4 for Android

Keyboard Handling on Android

Tomáš Šurín

Keyboard Handling on Android

Kotlin-Ready Online Guides

David Schreiber-Ranner

Kotlin-Ready Online Guides

PSPDFKit 2.2 for Android

Peter Steinberger

PSPDFKit 2.2 for Android

The curious case of Android premultiplied alpha

Jernej Virag

The curious case of Android premultiplied alpha

PSPDFKit 2.1 for Android

Peter Steinberger

PSPDFKit 2.1 for Android

PSPDFKit 2 for Android

Peter Steinberger

PSPDFKit 2 for Android

PSPDFKit 1.4 for Android

Peter Steinberger

PSPDFKit 1.4 for Android

PSPDFKit 1.3 for Android

Peter Steinberger

PSPDFKit 1.3 for Android

PSPDFKit 1.2 for Android

Peter Steinberger

PSPDFKit 1.2 for Android