Give your text the exact breathing room it needs. Learn how to adjust line height, side margins, and switch between justified book columns and natural ragged-left alignment in GemReader.
Why Layout Proportions Matter
Even with the perfect font and color theme, text that is packed too tightly or spread too widely across a screen can cause visual fatigue. Lines that sit too close together cause your eyes to lose their place when jumping down to the next sentence, while narrow margins on wide tablets force awkward head movement.
GemReader provides flexible layout geometry that allows you to balance vertical line spacing, horizontal margin insets, and paragraph alignment. Whether reading on a compact phone or a large tablet, you can create a layout that feels balanced and spacious.
What You'll Need
To customize layout geometry, ensure you have:
• **Platforms**: GemReader installed on your phone or tablet (Android or iOS). • **Supported Formats**: Any reflowable ebook (EPUB, MOBI, AZW3, FB2, TXT) open in the reader view.
Step-by-Step Instructions
1. While reading any reflowable book, tap the center of the screen to reveal the reading toolbars. 2. Tap the **Aa** button in the top toolbar to open **Text Settings**. 3. Scroll down to the **Layout** controls. 4. **Adjust Side Margins**: Use the **Margins** slider to increase or decrease the breathing space between the edges of your screen and the text body. 5. **Choose Line Spacing**: Under the **Line Spacing** section, choose from three calibrated heights: - **Compact**: For dense information review or smaller screens. - **Standard**: A balanced, classic book proportion suited for everyday reading. - **Comfy**: Generous vertical spacing that prevents eye-tracking strain. 6. **Set Text Alignment**: Select your preferred typographic flow: - **Book**: Preserves the original publisher stylesheet and default alignment. - **Left**: Forces clean left alignment with natural ragged-right line endings. - **Justified**: Evenly distributes words across each line with clean, straight margins on both sides. 7. Tap anywhere outside the sheet to close the controls and resume reading.
Helpful Tips & Common Questions (Librarian's Advice)
• **Two Columns in Landscape**: When reading on a tablet or rotating your phone horizontally, GemReader offers a **Two columns in landscape** toggle, allowing you to read in comfortable dual-page spreads. • **Right-to-Left (RTL) Scripts**: For books written in Arabic, Hebrew, or other right-to-left scripts, GemReader automatically adapts the alignment options to offer **Right** alignment instead of Left. • **Zero Place Lost**: Adjusting margins or line spacing never causes you to lose your reading position; the text smoothly re-flows around your active sentence.
Try it yourself