Make Room for
More Books
Compress Manga, comic, or your entire EPUB library up to 75% smaller in seconds without any uploads.
Reclaim your space, lighten the load without losing quality.
Storage Savings
See How Much Space
You Can Reclaim.
Select an ebook format below to see real-world file size reduction with LiteBook.
The Problem
Why EPUB Files
Get Out of Hand.
Publishers embed uncompressed print-resolution images into digital books, creating three major bottlenecks for readers:
Manga & Comics Eat Storage
A single volume often exceeds 150 MB. A 15-book series eats up gigabytes of device memory fast, triggering 'Storage Full' warnings on your iPhone, iPad, or e-reader.
The 25 MB Kindle Cap
Amazon rejects email attachments over 25 MB. Oversized EPUBs fail to send, conversion fails on Amazon's servers, and books silently fail to sync across your devices.
Shady Web Converters
Free online compressors force you to upload entire books and documents to unknown third-party cloud servers. Your personal library should stay private and offline.
Why LiteBook
Built to Fix Every
Ebook Bottleneck.
No desktop software, no cloud uploads, and no deleted books. Just fast on-device compression designed for readers.
Reclaim Up to 75% Space
Intelligently optimizes oversized print artwork for mobile screens. Keep every illustration crisp while storing 4× more books.
Send to Kindle Without Bouncing
Pulls 60–150 MB files comfortably under Amazon's 25 MB attachment cap so your books convert and sync across devices on the first try.
Zero Cloud Uploads
All compression happens locally on your iPhone or iPad. Nothing is ever uploaded to a server, keeping your library 100% private.
Batch Compress in One Tap
Select dozens of volumes at once and shrink an entire manga series or your whole ebook library in seconds instead of editing files one by one.
Simple Workflow
From files to compressed EPUB
in three steps.
Import EPUBs
Select the EPUB files you want to compress from your Files app or iCloud Drive.
Choose Compression Type
Select standard compression for maximum savings or lossless mode to preserve every byte of image data.
Compress & Save
Hit start and watch LiteBook shrink your files in seconds. Save them back to your device or share directly.
Simple Pricing
Unlock Unlimited
Compression.
One single plan for your entire ebook library. Cancel anytime in your Apple ID settings.
LiteBook Pro
Best value for your entire ebook collection
Just $1.25/month, billed annually. Save $20.89 per year.
- Unlimited EPUB compression
- Batch processing for entire libraries
- Standard & Lossless compression tiers
- 100% on-device & private (works offline)
Secure checkout via Apple In-App Purchase • Family Sharing eligible
EPUB Compression FAQ
Common questions about reducing EPUB file size with LiteBook.
LiteBook can reduce EPUB file sizes by up to 70% depending on the content. Files heavy with images typically see the biggest savings. Standard compression maximizes size reduction, while lossless mode preserves every byte of image data while still shrinking the file through structural optimization.
Simply open LiteBook, tap the import button to select your EPUB files from Files app or iCloud Drive, choose your compression level, and tap Start. LiteBook processes everything on-device in seconds.
No. LiteBook's compression algorithms target unnecessary metadata and optimize images without affecting layout or text quality. Your books will look exactly the same in any EPUB reader.
Never. LiteBook processes all files locally on your iPhone or iPad. We never upload your books to any server, ensuring complete privacy and security.
Standard compression applies aggressive optimizations to achieve maximum file size reduction. Lossless compression ensures every byte of image data is preserved perfectly while still reducing file size through structural and metadata optimization.
Yes! LiteBook supports batch processing, so you can import and compress your entire ebook library in one go. Select multiple EPUB files and compress them all with a single tap.
Yes. You can manage and cancel your subscription at any time through your Apple ID account settings.
Start Reading
Without Limits
Compress Manga, comics, and textbooks up to 75% smaller directly on your iPhone & iPad. No server uploads, zero quality loss.