Revise README for clarity and feature listing

Updated the README to enhance clarity and organization, including a new section for supported features and a restructured table of contents.

Author: ComPDF-Youna

README.md

@@ -1,12 +1,10 @@
 # ComPDF SDK for Android (PDF Library)
 
-As part of the KDAN ecosystem, [ComPDF SDK for Android](https://www.compdf.com/android?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit) enables developers to quickly and seamlessly integrate advanced PDF functionalities—such as PDF generating viewing, editing, annotating, and signing—into any Android application.
+As part of the KDAN ecosystem, [ComPDF SDK for Android](https://www.compdf.com/android?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit) enables developers to quickly and seamlessly integrate advanced PDF functionalities—such as PDF generating  viewing, editing, annotating, and signing—into any Android application.
 
-The ComPDF Android PDF Library provides an easy-to-use Java API that allows direct access to a wide range of PDF features without the need for complex configurations. By [registering for a free ComPDF API account](https://api.compdf.com/signup?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), developers can process up to 200+ API calls monthly for free.
+The ComPDF Android PDF Library provides an easy-to-use Java API that allows direct access to a wide range of PDF features without the need for complex configurations. 
 
-[ComPDF SDK](https://www.compdf.com/?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit) seamlessly operates on [Web](https://www.compdf.com/web?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [Windows](https://www.compdf.com/windows?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [Android](https://www.compdf.com/android?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [iOS](https://www.compdf.com/ios?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [Mac](https://www.compdf.com/contact-sales?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), and [Server](https://www.compdf.com/server?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), with support for cross-platform frameworks such as [React Native](https://www.compdf.com/react-native?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [Flutter](https://www.compdf.com/flutter?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), etc.
-
-If you find ComPDF SDK useful, please consider giving us a ⭐ **Star** on GitHub — it helps us grow and improve! Got questions or ideas? Join the conversation in our [Discussions](https://github.com/ComPDFKit/compdfkit-pdf-sdk-android/discussions).
+> If you find ComPDF SDK useful, please consider giving us a ⭐ **Star** on GitHub — it helps us grow and improve! Got questions or ideas? Join the conversation in our [Discussions](https://github.com/ComPDFKit/compdfkit-pdf-sdk-android/discussions).
 
 ![Android Demo GIF](https://github.com/ComPDFKit/compdfkit-pdf-sdk-android/blob/main/image-android/Android%20Demo%20GIF.gif)
 
@@ -25,22 +23,111 @@ If you find ComPDF SDK useful, please consider giving us a ⭐ **Star** on GitHu
 
 ## Table of Contents
 
-* [Related](#related)
-* [Preview](#preview)
-* [Requirements](#requirements)
-* [How to Make an Android PDF Viewer in Java](#how-to-make-an-android-pdf-viewer-in-java)
-  * [Installation](#installation)
-* [Changelog](#changelog)
-* [Free Trial and License](#free-trial-and-license)
-* [Support](#support)
+- [Supported Features](#supported-features)
+- [Preview](#preview)
+- [Requirements](#requirements)
+- [How to Make an Android PDF Viewer in Java](#how-to-make-an-android-pdf-viewer-in-java)
+  - [Installation](#installation)
+- [Free Trial and License](#free-trial-and-license)
+- [Support](#support)
+- [Changelog](#changelog)
+- [Related](#related)
 
-## Related
+## Supported Features
+
+**Viewer**: Fast and smooth PDF rendering and viewing
+
+* Display Modes - single/double page, vertical & horizontal scrolling, cover mode, crop mode
+* Text Search & Selection
+* PDF Navigation - outlines, bookmarks
+
+**Annotations**:
+
+* Notes - add longer comments with adjustable icon shape and color
+
+* Ink - freehand drawing with customizable color, opacity, line thickness
+
+* Text - add, move, resize text directly on page
+
+* Inspector - adjust annotation looks (line styles, borders, colors, opacity, font)
+
+* Comment on Annotations and Update Status
+
+* Import & Export & Flatten Annotations (XFDF, FDF, JSON)
+
+* Highlight, Underline, Strikeout, Squiggly
+
+* Shapes - Rectangle, Oval, Line, Arrow, Polygon, Polyline, Cloud
+
+* Stamps, Sound, Movie, File Attachment, Link, Distance, Perimeter, Area
+
+**Forms**:
+
+* Process fillable and static PDF forms
+
+* Form filling, form creation, form flattening
+
+**Document Editor**:
+
+* Page manipulation - insert, delete, rotate, reorder, extract, crop
+
+* Split PDF, Merge PDF
+
+**Content Editor**: Edit PDF text and images directly like in Word
+
+**Security**:
+
+* Encryption - set open password, permission password
+
+* Restrict printing, copying, editing
+
+**Signatures**:
+
+* Electronic Signatures - draw, type, image signatures
+
+* Digital Signatures - certificate-based signature validation
+
+**Watermark:**
+
+* Add Text or Image Watermarks
+
+* Delete Watermarks
+
+* Customize Watermarks
 
-* [ComPDF SDK for Android Documentation Guide](https://www.compdf.com/guides/pdf-sdk/android/overview?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit)
-* [ComPDF SDK for iOS](https://github.com/ComPDFKit/compdfkit-pdf-sdk-ios-swift)
-* [How to Build an Android PDF Viewer or Editor in Java](https://www.compdf.com/blog/build-an-android-pdf-viewer-or-editor-in-java?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit)
-* [Code Samples for Android](https://www.compdf.com/guides/pdf-sdk/android/examples?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit)
-* [ComPDF API Reference](https://api.compdf.com/api-reference/overview?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit)
+**OCR:**
+
+* AI OCR
+
+* Recognize Tables, Graphics, Images
+
+* Support recognition in 80+ Languages
+
+**Compare Documents**: Side-by-side document comparison to highlight differences
+
+**Redaction**: Permanently remove sensitive content from PDFs
+
+**Measurement**: Distance, area, perimeter measurement tools
+
+**Compress**: Optimize and reduce PDF file size
+
+**Convert Files**:
+
+* Convert PDF to Word, Excel, PPT, HTML, CSV, images (PNG,JPEG, JPEG, JPEG2000, BMP, TIFF, TGA, GIF), RTF, TXT, JSON, XML, markdown, searchable PDF, searchable OFD.
+
+* Convert images (PNG,JPEG, JPEG, JPEG2000, BMP, TIFF, TGA, GIF) to Word, Excel, PPT, HTML, CSV, RTF, TXT, JSON, XML.
+
+* Convert Word, Excel, PPT, HTML, CSV, PNG, RTF, TXT to PDF
+
+**UI Customization**:
+
+* Toolbar Customization
+
+* UI Personalization
+
+* Ready-Made UI Options
+
+* Out-of-the-box Source Code
 
 ## Preview
 
@@ -433,9 +520,6 @@ public class MainActivity extends AppCompatActivity {
 
 Now, with the help of ComPDF SDK, you can get a simple application to display a PDF file.
 
-## Changelog
-
-Keep up with the latest updates, improvements, and bug fixes for ComPDF SDK for Android: [View Android Changelog](https://www.compdf.com/pdf-sdk/changelog-android?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit)
 
 ## Free Trial and License
 
@@ -456,3 +540,25 @@ ComPDF offers professional technical support and 5×24 responsive service.
 * For detailed information, please visit our [Guides](https://www.compdf.com/guides/pdf-sdk/android/overview?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit) page.
 * For technical assistance, please reach out to our [Technical Support](https://www.compdf.com/support?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit).
 * To get more details and an accurate quote, please contact our [Sales Team](https://compdf.com/contact-us?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit) or [Send an Email](mailto:support@compdf.com) to us.
+
+## Changelog
+
+Keep up with the latest updates, improvements, and bug fixes for ComPDF SDK for Android: [View Android Changelog](https://www.compdf.com/pdf-sdk/changelog-android?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit).
+
+## Related
+
+* More Guides:
+  
+  - [API Reference for ComPDF SDK (Android)](https://developers.compdf.com/guides/pdf-sdk/android/api-reference/index)
+  
+  - [ComPDF SDK for Android Documentation Guide](https://www.compdf.com/guides/pdf-sdk/android/overview?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit)
+  
+  - [How to Build an Android PDF Viewer or Editor in Java](https://www.compdf.com/blog/build-an-android-pdf-viewer-or-editor-in-java?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit)
+  
+  - [Code Samples for Android](https://www.compdf.com/guides/pdf-sdk/android/examples?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit)
+  
+  - [API Reference for Android](https://developers.compdf.com/guides/pdf-sdk/android/api-reference/index?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit)
+- More Platforms and Frameworks: [ComPDF SDK](https://www.compdf.com/?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit) seamlessly operates on [Web](https://www.compdf.com/web?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [Windows](https://www.compdf.com/windows?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [Android](https://www.compdf.com/android?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [iOS](https://www.compdf.com/ios?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [Mac](https://www.compdf.com/contact-sales?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), and [Server](https://www.compdf.com/server?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), with support for cross-platform frameworks such as [React Native](https://www.compdf.com/react-native?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), [Flutter](https://www.compdf.com/flutter?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit), etc. 
+
+- ComPDF Cloud: We also provide Open API for developers. You can [register a free API account](https://api.compdf.com/signup?utm_source=github&utm_medium=compdfkit-pdf-sdk-android&utm_campaign=compdfkit_pdf_sdk_android_repo&ref_platform_id=github_compdfkit) to get up to 200+ API calls monthly for free.
+