Complete Book Formatting
Import, organize, and format your entire manuscript with professional themes and layouts.
Lacuna Trial vs Full Version
Format your entire book for free - test every feature, perfect your design, then purchase only when ready to generate your final EPUB.
Trial Mode: Everything Except EPUB Export
Live Device Preview
See exactly how your book looks across 7 different e-readers and tablets.
Advanced Editing Tools
Search, replace, and organize with project-wide tools and drag-and-drop sections.
Theme Customization
Design your book’s appearance with real-time visual feedback and professional templates.
What You Get FREE During Trial
- Format your entire book - Chapters, dialogue, images, everything
- Professional themes - Beautiful, publisher-quality layouts
- Live preview - See your final book on every device type
- Complete editing suite - Search, organize, and perfect your content
- Unlimited time - No trial expiration, format as many books as you want
Ready to Publish? One Click Away
The only difference in the full version: Click Generate E-Book to create your publication-ready EPUB file.
- EPUBCheck validated - Passes all industry publishing standards
- Platform ready - Works on Amazon, Draft2Digital, and all distributors
- Professional metadata - ISBN integration and complete publishing details
Get Your Publishing License
Satisfied with your formatted book? Purchase your lifetime license to unlock EPUB generation.
Purchase License
Ready to publish? Visit lacuna.pub/pricing for your lifetime license.
After purchase, see Managing Your License for activation.
Perfect your book first, purchase only when ready to publish.