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CompressKit

Professional PDF Compressor, Image Compressor & Image Resizer for Android.

CompressKit is a fast, lightweight, and completely offline Android application designed to compress PDFs, optimize images, and resize photos with custom dimensions and DPI. Built with Kotlin and Material Design 3, it provides a clean interface, high-speed processing, and complete privacy by processing files directly on your device.

📥 Download

Download the latest version from our official website:

https://simple-edit.netlify.app/

✨ Features

📄 PDF Compressor

  • Compress PDF files
  • Set custom target file size
  • High-quality PDF optimization
  • Fast offline processing
  • Maintain document readability

🖼️ Image Compressor

  • Compress JPG, JPEG, PNG & WEBP
  • Adjustable compression quality
  • Reduce image size without significant quality loss
  • Fast image optimization
  • High-quality output

📐 Image Resizer

  • Resize images to custom width & height
  • Set custom DPI
  • Lock Aspect Ratio
  • Ready for forms and websites
  • Passport & document photo support
  • High-quality resized images

📂 Supported Formats

Images

  • JPG
  • JPEG
  • PNG
  • WEBP

Documents

  • PDF

⚡ Why CompressKit?

  • 100% Offline
  • No Internet Required
  • No Watermark
  • Fast Processing
  • Material Design 3 UI
  • Light & Dark Theme
  • Secure File Handling
  • Privacy Focused

📱 Requirements

  • Android 8.0 (API 26) or above

🚀 Installation

  1. Download the latest APK.
  2. Install it on your Android device.
  3. Open CompressKit.
  4. Select your preferred tool.
  5. Choose your file.
  6. Compress or resize.
  7. Save or share the output.

🛠 Built With

  • Kotlin
  • Android SDK
  • Material Design 3
  • AndroidX
  • Kotlin Coroutines
  • Storage Access Framework (SAF)
  • MediaStore API
  • FileProvider

📁 Project Structure

app/
gradle/
README.md
build.gradle
settings.gradle
gradle.properties

📌 Included Tools

  • PDF Compressor
  • Image Compressor
  • Image Resizer

🔒 Privacy

CompressKit processes all files locally on your device.

Your PDFs and images are never uploaded to any server.

Your data always remains private.

🌐 Official Website

https://simple-edit.netlify.app/

📦 Latest Release

Download the latest version from:

https://simple-edit.netlify.app/

🤝 Contributing

Contributions are welcome!

If you find a bug or have an idea for a new feature, feel free to open an Issue or submit a Pull Request.

⭐ Support

If you like CompressKit, please consider giving this repository a ⭐ on GitHub.

Your support helps improve the project.

👨‍💻 Developer

Lk Bunkar

Official Website:

https://simple-edit.netlify.app/

GitHub:

https://github.com/lkbunkar

📄 License

This project is licensed under the MIT License.

❤️ Thank You

Thank you for using CompressKit.

We hope it helps you compress PDFs, optimize images, and resize photos quickly while keeping your files completely private.

© 2026 Lk Bunkar. All Rights Reserved.

About

Professional PDF & Image Compression App for Android with Offline Processing.

simple-edit.netlify.app/

Topics

androidandroid-appcompressorfile-compressionimage-compressorkotlinmaterial3offlinepdf-compressor

Resources

Readme
Activity

Stars

0 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
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CompressKit
Professional PDF Compressor, Image Compressor & Image Resizer for Android.
CompressKit is a fast, lightweight, and completely offline Android application designed to compress PDFs, optimize images, and resize photos with custom dimensions and DPI. Built with Kotlin and Material Design 3, it provides a clean interface, high-speed processing, and complete privacy by processing files directly on your device.
📥 Download
Download the latest version from our official website:
https://simple-edit.netlify.app/
✨ Features
📄 PDF Compressor
  • Compress PDF files
  • Set custom target file size
  • High-quality PDF optimization
  • Fast offline processing
  • Maintain document readability
🖼️ Image Compressor
  • Compress JPG, JPEG, PNG & WEBP
  • Adjustable compression quality
  • Reduce image size without significant quality loss
  • Fast image optimization
  • High-quality output
📐 Image Resizer
  • Resize images to custom width & height
  • Set custom DPI
  • Lock Aspect Ratio
  • Ready for forms and websites
  • Passport & document photo support
  • High-quality resized images
📂 Supported Formats
Images
  • JPG
  • JPEG
  • PNG
  • WEBP
Documents
  • PDF
⚡ Why CompressKit?
  • 100% Offline
  • No Internet Required
  • No Watermark
  • Fast Processing
  • Material Design 3 UI
  • Light & Dark Theme
  • Secure File Handling
  • Privacy Focused
📱 Requirements
  • Android 8.0 (API 26) or above
🚀 Installation
  1. Download the latest APK.
  2. Install it on your Android device.
  3. Open CompressKit.
  4. Select your preferred tool.
  5. Choose your file.
  6. Compress or resize.
  7. Save or share the output.
🛠 Built With
  • Kotlin
  • Android SDK
  • Material Design 3
  • AndroidX
  • Kotlin Coroutines
  • Storage Access Framework (SAF)
  • MediaStore API
  • FileProvider
📁 Project Structure
app/
gradle/
README.md
build.gradle
settings.gradle
gradle.properties

📌 Included Tools
  • PDF Compressor
  • Image Compressor
  • Image Resizer
🔒 Privacy
CompressKit processes all files locally on your device.
Your PDFs and images are never uploaded to any server.
Your data always remains private.
🌐 Official Website
https://simple-edit.netlify.app/
📦 Latest Release
Download the latest version from:
https://simple-edit.netlify.app/
🤝 Contributing
Contributions are welcome!
If you find a bug or have an idea for a new feature, feel free to open an Issue or submit a Pull Request.
⭐ Support
If you like CompressKit, please consider giving this repository a ⭐ on GitHub.
Your support helps improve the project.
👨‍💻 Developer
Lk Bunkar
Official Website:
https://simple-edit.netlify.app/
GitHub:
https://github.com/lkbunkar
📄 License
This project is licensed under the MIT License.
❤️ Thank You
Thank you for using CompressKit.
We hope it helps you compress PDFs, optimize images, and resize photos quickly while keeping your files completely private.
© 2026 Lk Bunkar. All Rights Reserved.
About
Professional PDF & Image Compression App for Android with Offline Processing.
simple-edit.netlify.app/
Topics
androidandroid-appcompressorfile-compressionimage-compressorkotlinmaterial3offlinepdf-compressor
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
CompressKit
Professional PDF Compressor, Image Compressor & Image Resizer for Android.
CompressKit is a fast, lightweight, and completely offline Android application designed to compress PDFs, optimize images, and resize photos with custom dimensions and DPI. Built with Kotlin and Material Design 3, it provides a clean interface, high-speed processing, and complete privacy by processing files directly on your device.
📥 Download
Download the latest version from our official website:
https://simple-edit.netlify.app/
✨ Features
📄 PDF Compressor
  • Compress PDF files
  • Set custom target file size
  • High-quality PDF optimization
  • Fast offline processing
  • Maintain document readability
🖼️ Image Compressor
  • Compress JPG, JPEG, PNG & WEBP
  • Adjustable compression quality
  • Reduce image size without significant quality loss
  • Fast image optimization
  • High-quality output
📐 Image Resizer
  • Resize images to custom width & height
  • Set custom DPI
  • Lock Aspect Ratio
  • Ready for forms and websites
  • Passport & document photo support
  • High-quality resized images
📂 Supported Formats
Images
  • JPG
  • JPEG
  • PNG
  • WEBP
Documents
  • PDF
⚡ Why CompressKit?
  • 100% Offline
  • No Internet Required
  • No Watermark
  • Fast Processing
  • Material Design 3 UI
  • Light & Dark Theme
  • Secure File Handling
  • Privacy Focused
📱 Requirements
  • Android 8.0 (API 26) or above
🚀 Installation
  1. Download the latest APK.
  2. Install it on your Android device.
  3. Open CompressKit.
  4. Select your preferred tool.
  5. Choose your file.
  6. Compress or resize.
  7. Save or share the output.
🛠 Built With
  • Kotlin
  • Android SDK
  • Material Design 3
  • AndroidX
  • Kotlin Coroutines
  • Storage Access Framework (SAF)
  • MediaStore API
  • FileProvider
📁 Project Structure
app/
gradle/
README.md
build.gradle
settings.gradle
gradle.properties

📌 Included Tools
  • PDF Compressor
  • Image Compressor
  • Image Resizer
🔒 Privacy
CompressKit processes all files locally on your device.
Your PDFs and images are never uploaded to any server.
Your data always remains private.
🌐 Official Website
https://simple-edit.netlify.app/
📦 Latest Release
Download the latest version from:
https://simple-edit.netlify.app/
🤝 Contributing
Contributions are welcome!
If you find a bug or have an idea for a new feature, feel free to open an Issue or submit a Pull Request.
⭐ Support
If you like CompressKit, please consider giving this repository a ⭐ on GitHub.
Your support helps improve the project.
👨‍💻 Developer
Lk Bunkar
Official Website:
https://simple-edit.netlify.app/
GitHub:
https://github.com/lkbunkar
📄 License
This project is licensed under the MIT License.
❤️ Thank You
Thank you for using CompressKit.
We hope it helps you compress PDFs, optimize images, and resize photos quickly while keeping your files completely private.
© 2026 Lk Bunkar. All Rights Reserved.
About
Professional PDF & Image Compression App for Android with Offline Processing.
simple-edit.netlify.app/
Topics
androidandroid-appcompressorfile-compressionimage-compressorkotlinmaterial3offlinepdf-compressor
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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CompressKit
Professional PDF Compressor, Image Compressor & Image Resizer for Android.
CompressKit is a fast, lightweight, and completely offline Android application designed to compress PDFs, optimize images, and resize photos with custom dimensions and DPI. Built with Kotlin and Material Design 3, it provides a clean interface, high-speed processing, and complete privacy by processing files directly on your device.
📥 Download
Download the latest version from our official website:
https://simple-edit.netlify.app/
✨ Features
📄 PDF Compressor
  • Compress PDF files
  • Set custom target file size
  • High-quality PDF optimization
  • Fast offline processing
  • Maintain document readability
🖼️ Image Compressor
  • Compress JPG, JPEG, PNG & WEBP
  • Adjustable compression quality
  • Reduce image size without significant quality loss
  • Fast image optimization
  • High-quality output
📐 Image Resizer
  • Resize images to custom width & height
  • Set custom DPI
  • Lock Aspect Ratio
  • Ready for forms and websites
  • Passport & document photo support
  • High-quality resized images
📂 Supported Formats
Images
  • JPG
  • JPEG
  • PNG
  • WEBP
Documents
  • PDF
⚡ Why CompressKit?
  • 100% Offline
  • No Internet Required
  • No Watermark
  • Fast Processing
  • Material Design 3 UI
  • Light & Dark Theme
  • Secure File Handling
  • Privacy Focused
📱 Requirements
  • Android 8.0 (API 26) or above
🚀 Installation
  1. Download the latest APK.
  2. Install it on your Android device.
  3. Open CompressKit.
  4. Select your preferred tool.
  5. Choose your file.
  6. Compress or resize.
  7. Save or share the output.
🛠 Built With
  • Kotlin
  • Android SDK
  • Material Design 3
  • AndroidX
  • Kotlin Coroutines
  • Storage Access Framework (SAF)
  • MediaStore API
  • FileProvider
📁 Project Structure
app/
gradle/
README.md
build.gradle
settings.gradle
gradle.properties

📌 Included Tools
  • PDF Compressor
  • Image Compressor
  • Image Resizer
🔒 Privacy
CompressKit processes all files locally on your device.
Your PDFs and images are never uploaded to any server.
Your data always remains private.
🌐 Official Website
https://simple-edit.netlify.app/
📦 Latest Release
Download the latest version from:
https://simple-edit.netlify.app/
🤝 Contributing
Contributions are welcome!
If you find a bug or have an idea for a new feature, feel free to open an Issue or submit a Pull Request.
⭐ Support
If you like CompressKit, please consider giving this repository a ⭐ on GitHub.
Your support helps improve the project.
👨‍💻 Developer
Lk Bunkar
Official Website:
https://simple-edit.netlify.app/
GitHub:
https://github.com/lkbunkar
📄 License
This project is licensed under the MIT License.
❤️ Thank You
Thank you for using CompressKit.
We hope it helps you compress PDFs, optimize images, and resize photos quickly while keeping your files completely private.
© 2026 Lk Bunkar. All Rights Reserved.
About
Professional PDF & Image Compression App for Android with Offline Processing.
simple-edit.netlify.app/
Topics
androidandroid-appcompressorfile-compressionimage-compressorkotlinmaterial3offlinepdf-compressor
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
CompressKit
Professional PDF Compressor, Image Compressor & Image Resizer for Android.
CompressKit is a fast, lightweight, and completely offline Android application designed to compress PDFs, optimize images, and resize photos with custom dimensions and DPI. Built with Kotlin and Material Design 3, it provides a clean interface, high-speed processing, and complete privacy by processing files directly on your device.
📥 Download
Download the latest version from our official website:
https://simple-edit.netlify.app/
✨ Features
📄 PDF Compressor
  • Compress PDF files
  • Set custom target file size
  • High-quality PDF optimization
  • Fast offline processing
  • Maintain document readability
🖼️ Image Compressor
  • Compress JPG, JPEG, PNG & WEBP
  • Adjustable compression quality
  • Reduce image size without significant quality loss
  • Fast image optimization
  • High-quality output
📐 Image Resizer
  • Resize images to custom width & height
  • Set custom DPI
  • Lock Aspect Ratio
  • Ready for forms and websites
  • Passport & document photo support
  • High-quality resized images
📂 Supported Formats
Images
  • JPG
  • JPEG
  • PNG
  • WEBP
Documents
  • PDF
⚡ Why CompressKit?
  • 100% Offline
  • No Internet Required
  • No Watermark
  • Fast Processing
  • Material Design 3 UI
  • Light & Dark Theme
  • Secure File Handling
  • Privacy Focused
📱 Requirements
  • Android 8.0 (API 26) or above
🚀 Installation
  1. Download the latest APK.
  2. Install it on your Android device.
  3. Open CompressKit.
  4. Select your preferred tool.
  5. Choose your file.
  6. Compress or resize.
  7. Save or share the output.
🛠 Built With
  • Kotlin
  • Android SDK
  • Material Design 3
  • AndroidX
  • Kotlin Coroutines
  • Storage Access Framework (SAF)
  • MediaStore API
  • FileProvider
📁 Project Structure
app/
gradle/
README.md
build.gradle
settings.gradle
gradle.properties

📌 Included Tools
  • PDF Compressor
  • Image Compressor
  • Image Resizer
🔒 Privacy
CompressKit processes all files locally on your device.
Your PDFs and images are never uploaded to any server.
Your data always remains private.
🌐 Official Website
https://simple-edit.netlify.app/
📦 Latest Release
Download the latest version from:
https://simple-edit.netlify.app/
🤝 Contributing
Contributions are welcome!
If you find a bug or have an idea for a new feature, feel free to open an Issue or submit a Pull Request.
⭐ Support
If you like CompressKit, please consider giving this repository a ⭐ on GitHub.
Your support helps improve the project.
👨‍💻 Developer
Lk Bunkar
Official Website:
https://simple-edit.netlify.app/
GitHub:
https://github.com/lkbunkar
📄 License
This project is licensed under the MIT License.
❤️ Thank You
Thank you for using CompressKit.
We hope it helps you compress PDFs, optimize images, and resize photos quickly while keeping your files completely private.
© 2026 Lk Bunkar. All Rights Reserved.
About
Professional PDF & Image Compression App for Android with Offline Processing.
simple-edit.netlify.app/
Topics
androidandroid-appcompressorfile-compressionimage-compressorkotlinmaterial3offlinepdf-compressor
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
CompressKit
Professional PDF Compressor, Image Compressor & Image Resizer for Android.
CompressKit is a fast, lightweight, and completely offline Android application designed to compress PDFs, optimize images, and resize photos with custom dimensions and DPI. Built with Kotlin and Material Design 3, it provides a clean interface, high-speed processing, and complete privacy by processing files directly on your device.
📥 Download
Download the latest version from our official website:
https://simple-edit.netlify.app/
✨ Features
📄 PDF Compressor
  • Compress PDF files
  • Set custom target file size
  • High-quality PDF optimization
  • Fast offline processing
  • Maintain document readability
🖼️ Image Compressor
  • Compress JPG, JPEG, PNG & WEBP
  • Adjustable compression quality
  • Reduce image size without significant quality loss
  • Fast image optimization
  • High-quality output
📐 Image Resizer
  • Resize images to custom width & height
  • Set custom DPI
  • Lock Aspect Ratio
  • Ready for forms and websites
  • Passport & document photo support
  • High-quality resized images
📂 Supported Formats
Images
  • JPG
  • JPEG
  • PNG
  • WEBP
Documents
  • PDF
⚡ Why CompressKit?
  • 100% Offline
  • No Internet Required
  • No Watermark
  • Fast Processing
  • Material Design 3 UI
  • Light & Dark Theme
  • Secure File Handling
  • Privacy Focused
📱 Requirements
  • Android 8.0 (API 26) or above
🚀 Installation
  1. Download the latest APK.
  2. Install it on your Android device.
  3. Open CompressKit.
  4. Select your preferred tool.
  5. Choose your file.
  6. Compress or resize.
  7. Save or share the output.
🛠 Built With
  • Kotlin
  • Android SDK
  • Material Design 3
  • AndroidX
  • Kotlin Coroutines
  • Storage Access Framework (SAF)
  • MediaStore API
  • FileProvider
📁 Project Structure
app/
gradle/
README.md
build.gradle
settings.gradle
gradle.properties

📌 Included Tools
  • PDF Compressor
  • Image Compressor
  • Image Resizer
🔒 Privacy
CompressKit processes all files locally on your device.
Your PDFs and images are never uploaded to any server.
Your data always remains private.
🌐 Official Website
https://simple-edit.netlify.app/
📦 Latest Release
Download the latest version from:
https://simple-edit.netlify.app/
🤝 Contributing
Contributions are welcome!
If you find a bug or have an idea for a new feature, feel free to open an Issue or submit a Pull Request.
⭐ Support
If you like CompressKit, please consider giving this repository a ⭐ on GitHub.
Your support helps improve the project.
👨‍💻 Developer
Lk Bunkar
Official Website:
https://simple-edit.netlify.app/
GitHub:
https://github.com/lkbunkar
📄 License
This project is licensed under the MIT License.
❤️ Thank You
Thank you for using CompressKit.
We hope it helps you compress PDFs, optimize images, and resize photos quickly while keeping your files completely private.
© 2026 Lk Bunkar. All Rights Reserved.
About
Professional PDF & Image Compression App for Android with Offline Processing.
simple-edit.netlify.app/
Topics
androidandroid-appcompressorfile-compressionimage-compressorkotlinmaterial3offlinepdf-compressor
Resources
Readme
Activity
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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CompressKit
Professional PDF Compressor, Image Compressor & Image Resizer for Android.
CompressKit is a fast, lightweight, and completely offline Android application designed to compress PDFs, optimize images, and resize photos with custom dimensions and DPI. Built with Kotlin and Material Design 3, it provides a clean interface, high-speed processing, and complete privacy by processing files directly on your device.
📥 Download
Download the latest version from our official website:
https://simple-edit.netlify.app/
✨ Features
📄 PDF Compressor
  • Compress PDF files
  • Set custom target file size
  • High-quality PDF optimization
  • Fast offline processing
  • Maintain document readability
🖼️ Image Compressor
  • Compress JPG, JPEG, PNG & WEBP
  • Adjustable compression quality
  • Reduce image size without significant quality loss
  • Fast image optimization
  • High-quality output
📐 Image Resizer
  • Resize images to custom width & height
  • Set custom DPI
  • Lock Aspect Ratio
  • Ready for forms and websites
  • Passport & document photo support
  • High-quality resized images
📂 Supported Formats
Images
  • JPG
  • JPEG
  • PNG
  • WEBP
Documents
  • PDF
⚡ Why CompressKit?
  • 100% Offline
  • No Internet Required
  • No Watermark
  • Fast Processing
  • Material Design 3 UI
  • Light & Dark Theme
  • Secure File Handling
  • Privacy Focused
📱 Requirements
  • Android 8.0 (API 26) or above
🚀 Installation
  1. Download the latest APK.
  2. Install it on your Android device.
  3. Open CompressKit.
  4. Select your preferred tool.
  5. Choose your file.
  6. Compress or resize.
  7. Save or share the output.
🛠 Built With
  • Kotlin
  • Android SDK
  • Material Design 3
  • AndroidX
  • Kotlin Coroutines
  • Storage Access Framework (SAF)
  • MediaStore API
  • FileProvider
📁 Project Structure
app/
gradle/
README.md
build.gradle
settings.gradle
gradle.properties

📌 Included Tools
  • PDF Compressor
  • Image Compressor
  • Image Resizer
🔒 Privacy
CompressKit processes all files locally on your device.
Your PDFs and images are never uploaded to any server.
Your data always remains private.
🌐 Official Website
https://simple-edit.netlify.app/
📦 Latest Release
Download the latest version from:
https://simple-edit.netlify.app/
🤝 Contributing
Contributions are welcome!
If you find a bug or have an idea for a new feature, feel free to open an Issue or submit a Pull Request.
⭐ Support
If you like CompressKit, please consider giving this repository a ⭐ on GitHub.
Your support helps improve the project.
👨‍💻 Developer
Lk Bunkar
Official Website:
https://simple-edit.netlify.app/
GitHub:
https://github.com/lkbunkar
📄 License
This project is licensed under the MIT License.
❤️ Thank You
Thank you for using CompressKit.
We hope it helps you compress PDFs, optimize images, and resize photos quickly while keeping your files completely private.
© 2026 Lk Bunkar. All Rights Reserved.
About
Professional PDF & Image Compression App for Android with Offline Processing.
simple-edit.netlify.app/
Topics
androidandroid-appcompressorfile-compressionimage-compressorkotlinmaterial3offlinepdf-compressor
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
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Repository files navigation
CompressKit
Professional PDF Compressor, Image Compressor & Image Resizer for Android.
CompressKit is a fast, lightweight, and completely offline Android application designed to compress PDFs, optimize images, and resize photos with custom dimensions and DPI. Built with Kotlin and Material Design 3, it provides a clean interface, high-speed processing, and complete privacy by processing files directly on your device.
📥 Download
Download the latest version from our official website:
https://simple-edit.netlify.app/
✨ Features
📄 PDF Compressor
  • Compress PDF files
  • Set custom target file size
  • High-quality PDF optimization
  • Fast offline processing
  • Maintain document readability
🖼️ Image Compressor
  • Compress JPG, JPEG, PNG & WEBP
  • Adjustable compression quality
  • Reduce image size without significant quality loss
  • Fast image optimization
  • High-quality output
📐 Image Resizer
  • Resize images to custom width & height
  • Set custom DPI
  • Lock Aspect Ratio
  • Ready for forms and websites
  • Passport & document photo support
  • High-quality resized images
📂 Supported Formats
Images
  • JPG
  • JPEG
  • PNG
  • WEBP
Documents
  • PDF
⚡ Why CompressKit?
  • 100% Offline
  • No Internet Required
  • No Watermark
  • Fast Processing
  • Material Design 3 UI
  • Light & Dark Theme
  • Secure File Handling
  • Privacy Focused
📱 Requirements
  • Android 8.0 (API 26) or above
🚀 Installation
  1. Download the latest APK.
  2. Install it on your Android device.
  3. Open CompressKit.
  4. Select your preferred tool.
  5. Choose your file.
  6. Compress or resize.
  7. Save or share the output.
🛠 Built With
  • Kotlin
  • Android SDK
  • Material Design 3
  • AndroidX
  • Kotlin Coroutines
  • Storage Access Framework (SAF)
  • MediaStore API
  • FileProvider
📁 Project Structure
app/
gradle/
README.md
build.gradle
settings.gradle
gradle.properties

📌 Included Tools
  • PDF Compressor
  • Image Compressor
  • Image Resizer
🔒 Privacy
CompressKit processes all files locally on your device.
Your PDFs and images are never uploaded to any server.
Your data always remains private.
🌐 Official Website
https://simple-edit.netlify.app/
📦 Latest Release
Download the latest version from:
https://simple-edit.netlify.app/
🤝 Contributing
Contributions are welcome!
If you find a bug or have an idea for a new feature, feel free to open an Issue or submit a Pull Request.
⭐ Support
If you like CompressKit, please consider giving this repository a ⭐ on GitHub.
Your support helps improve the project.
👨‍💻 Developer
Lk Bunkar
Official Website:
https://simple-edit.netlify.app/
GitHub:
https://github.com/lkbunkar
📄 License
This project is licensed under the MIT License.
❤️ Thank You
Thank you for using CompressKit.
We hope it helps you compress PDFs, optimize images, and resize photos quickly while keeping your files completely private.
© 2026 Lk Bunkar. All Rights Reserved.
About
Professional PDF & Image Compression App for Android with Offline Processing.
simple-edit.netlify.app/
Topics
androidandroid-appcompressorfile-compressionimage-compressorkotlinmaterial3offlinepdf-compressor
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages