Pdf Viewer For Android

A Simple PDF Viewer library which only occupies around 80kb while most of the Pdf viewer occupies upto 16MB space.

Hello Developers! We're thrilled to share some significant enhancements we've made to our PDF viewer library. We've fine-tuned several aspects to enhance your experience and ensure top-notch performance and security. Here's what's new:

• Jetpack Compose Ready 🚀

  Step into the future with Jetpack Compose compatibility. Integrating our PDF viewer in Compose projects is now effortless, thanks to the PdfRendererViewCompose composable function.

• Turbocharged Performance 🏎️

  We've optimized performance to handle PDFs more efficiently, ensuring swift and smooth operations, even with large documents.

• Local and on device files 📁

  We have made it better and smooth with how local files are handled now, with latest permission policies.

• Seamless Orientation Adaptation 🔄

  Our library now smartly preserves your page position during orientation changes, ensuring uninterrupted reading sessions.

• Enhanced File Path Security 🔐

  Security just got stronger. We've revamped our file path handling to provide robust protection against directory traversal attacks, keeping your data safer than ever.

• Streamlined Caching System 💾

  Experience efficiency at its best! Our refined caching strategy smartly manages storage, retaining only the most recent PDF file to optimize performance and space usage.

• Discreet Screenshot Prevention Feature 🚫📸

  Privacy matters. Our new screenshot-blocking feature enhances data confidentiality in your app, keeping sensitive information secure from prying eyes.

• Flexible UI Customization ✨

  Your design, your rules. Enjoy complete freedom in customizing the PDF viewer's interface, ensuring a perfect match with your app's style and theme. Render the view directly in your screen now.

• 'NoActionBar' Theme Compatibility 🎨

  Seamless aesthetics, no matter the theme. Our library now gracefully integrates with 'NoActionBar' themes, ensuring a cohesive and appealing user interface.

Stay tuned as we continue to innovate and improve. Happy coding, and let's keep creating amazing experiences together!

We have migrated our library to Maven Central for easier integration and better reliability. To use the Pdf Viewer library in your project, add the following dependency to your build.gradle file:

dependencies {
    // Replace 'latest-version' with the actual latest version number
    implementation 'io.github.afreakyelf:Pdf-Viewer:latest-version'
}

dependencies {
    // Replace 'latest-version' with the actual latest version number
    implementation("io.github.afreakyelf:Pdf-Viewer:latest-version")
}

Now you have integrated the library in your project but how do you use it? Well it's really easy. Just launch the intent with in following way: (Refer to MainActivity.kt for more details.)

Ensure the library is included in your project's dependencies.

To display a PDF from a URL, use the following code:

/* Parameters:
- context: The context of your activity.
- pdfUrl: URL of the PDF to be displayed.
- pdfTitle: Title of the PDF document.
- saveTo: Determines how to handle saving the PDF (e.g., ASK_EVERYTIME prompts the user each time).
- enableDownload: Enables downloading of the PDF. */

PdfViewerActivity.launchPdfFromUrl(
    context = this,
    pdfUrl = "your_pdf_url_here",
    pdfTitle = "PDF Title",
    saveTo = PdfViewerActivity.saveTo.ASK_EVERYTIME,
    enableDownload = true
)

To open a PDF stored in local storage:

/* Parameters:
- path: File path or URI of the local PDF.
- fromAssets: Set to false when loading from local storage. // FALSE by default
*/

PdfViewerActivity.launchPdfFromPath(
    context = this,
    path = "your_file_path_or_uri_here",
    pdfTitle = "Title",
    saveTo = PdfViewerActivity.saveTo.ASK_EVERYTIME,
    fromAssets = false
)

To open a PDF from the app's assets folder:

/* Parameters:
- path: File path or URI of the local PDF.
- fromAssets: Set to true when loading from assets.
*/

PdfViewerActivity.launchPdfFromPath(
  context = this,
  path = "file_name_in_assets",
  pdfTitle = "Title",
  saveTo = PdfViewerActivity.saveTo.ASK_EVERYTIME,
  fromAssets = true
)

Load a PDF directly into a view:

Add PDF render view in your layout file

<com.rajat.pdfviewer.PdfRendererView
    android:id="@+id/pdfView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:pdfView_divider="@drawable/pdf_viewer_divider"
    app:pdfView_showDivider="false" />

and in your kotlin file

binding.pdfView.initWithUrl(
  url = "your_pdf_url_here",
  lifecycleCoroutineScope = lifecycleScope,
  lifecycle = lifecycle
)

For Jetpack Compose, utilize PdfRendererViewCompose:

PdfRendererViewCompose(
    url = "your_pdf_url_here",
    lifecycleOwner = LocalLifecycleOwner.current
)

That's pretty much it and you're all wrapped up.

You need to add the custom theme to styles.xml/themes.xml file and override the required attribute values. Parent theme can be either Theme.PdfView.Light or Theme.PdfView.Dark or the one with no actionbar from the application. Note: If parent is not one of the themes from this library, all of the pdfView attributes should be added to that theme.

<style name="Theme.PdfView.SelectedTheme" parent="@style/Theme.PdfView.Light">
    <item name="pdfView_backIcon">@drawable/ic_arrow_back</item>
    <item name="pdfView_showToolbar">true</item>
    <item name="pdfView_disableScreenshots">true</item>
    ...
</style>

You need to add the custom layout to pdf_view_page_no.xml file and override the required attribute values.

<?xml version="1.0" encoding="utf-8"?>  
<TextView xmlns:android="http://schemas.android.com/apk/res/android"  
  android:id="@+id/pageNo"  
  android:layout_width="wrap_content"  
  android:layout_height="wrap_content"  
  android:layout_margin="18dp"  
  android:background="#9C27B0"  
  android:paddingStart="12dp"  
  android:paddingTop="4dp"  
  android:paddingEnd="12dp"  
  android:paddingBottom="4dp"  
  android:textColor="#ffffff"  
  android:textSize="16sp"  
  android:visibility="gone" />

You need to add the custom string to strings.xml file and override the required strings.xml values.

Default:

<string name="pdfView_page_no">%1$s of %2$s</string>

Custom:

<string name="pdfView_page_no" >%1$s / %2$s</string>

👉 Check out who's using Pdf-Viewer

Any contributions you make are greatly appreciated.

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/NewFeature)
3. Commit your Changes (git commit -m 'Add some NewFeature')
4. Push to the Branch (git push origin feature/NewFeature)
5. Open a Pull Request

If this library helps you save time during development, you can buy me a cup of coffee :)

Maintained by Rajat Mittal