A powerful Kotlin Multiplatform PDF Viewer library for Android and iOS using native platform WebView implementations.

Built with:

• Kotlin Multiplatform (KMP)
• Compose Multiplatform
• Android WebView
• iOS WKWebView

Supports direct PDF URL loading with native behavior on both Android and iOS.

implementation("io.github.karun02525:webview-pdf-viewer:1.0.3")

✅ Direct PDF URL loading
✅ Native Android WebView support
✅ Native iOS WKWebView support
✅ Compose Multiplatform support
✅ Native back navigation support
✅ Dynamic title support
✅ Zoom support with gestures
✅ Pinch-to-zoom support
✅ Page indicator support
✅ Smooth scrolling behavior
✅ Native PDF rendering
✅ Loading state callback
✅ Lightweight implementation
✅ Shared KMP module support
✅ LRU memory management
✅ Optimized bitmap memory handling
✅ Android & iOS native behavior
✅ Simple API integration
✅ Production-ready architecture
✅ Coroutine support
✅ Fast PDF loading
✅ Native lifecycle handling
✅ Gesture support
✅ Modern Compose UI support

Uses native Android WebView

• Native WebView rendering
• PDF URL loading
• JavaScript support
• Native lifecycle handling
• Back press support
• Gesture zoom support
• Optimized rendering
• LRU bitmap cache handling

Uses native iOS WKWebView

• Native WKWebView rendering
• Native PDF preview support
• Smooth scrolling
• Gesture zoom support
• Native navigation delegates
• Native memory handling
• Optimized PDF rendering

repositories {
    mavenCentral()
}

implementation("io.github.karun02525:webview-pdf-viewer:1.0.3")

OpenWebView(
    modifier = Modifier.fillMaxSize(),
    url = "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf",
)

https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf

This library includes:

• LRU memory cache management
• Optimized bitmap rendering
• Native memory handling
• Reduced memory usage
• Smooth scrolling optimization

• 💾 Local Path Reference: preview/demo.mp4

screenshots/
 ├── android-preview.png
 └── ios-preview.png

# Tech Stack

- Kotlin Multiplatform
- Compose Multiplatform
- Android WebView
- iOS WKWebView
- Kotlin Coroutines

---

# Project Structure

```text
shared/
 ├── commonMain
 ├── androidMain
 └── iosMain

🚀 PDF download support
🚀 Thumbnail preview
🚀 Search inside PDF
🚀 Dark mode improvements

• Native platform behavior
• Simple integration
• KMP-ready
• Compose-first API
• Lightweight implementation
• Smooth performance
• Optimized memory management
• Android + iOS support
• Production-ready setup

Karun Kumar

📧 Email
karunkumar02525@gmail.com

📱 Phone
8920828585

🌐 GitHub
https://github.com/karun02525

https://github.com/karun02525/webview-pdf-viewer

Apache License 2.0

Licensed under the Apache License, Version 2.0

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

Pull requests and contributions are welcome.

If you find issues or want improvements, feel free to create an issue or PR.

If you like this project, please ⭐ the repository on GitHub.