Change your book's font, font size and line spacing with Gutter

Gutter includes five font families, each with four styles (regular, italic, bold and bold italic): EB Garamond (a classic book typeface, the go-to for fiction), Lora (a contemporary, highly readable serif), Playfair Display (high-contrast, for headings with personality), Montserrat (a geometric sans-serif) and Arimo (a neutral sans-serif, equivalent to Arial).

If you ask for Arial, you'll get Arimo, which has the same metrics. If you ask for a font that isn't available, Gutter suggests the closest match in style.

Ask for it for the body text or any type of heading. You can give a number (“12 points”) or ask in relative terms (“a bit bigger”). Sizes from 6 to 72 points are supported.

Changing the body text size changes the page count, and therefore the price: you'll see it in the preview.

Ask for line spacing the way you'd say it (“more breathing room”, “1.5 spacing”, “double”); values from 1 to 3 are supported. Spacing before and after paragraphs, from 0 to 200 points, works the same way.

It's one of the things that most changes how a page looks and how many pages your book has.

First-line indent (the space at the start of each paragraph) and left indent can be added, adjusted or removed for the body text and for blocks that support them, like quotes.

Yes. Alignment can be left, centered, right or justified, and you can set it for the body text or any block: headings, subtitles, quotes, the dedication…

Yes: bold, italic, underline and color, for the body text or any block. Ask for a color by name (black, navy blue, burgundy, gold, turquoise…) or by its hex code.

You can adjust each of these separately: the body text, chapter titles, part titles, subtitles, section headings, block quotes, the copyright page, the dedication, the half-title page, the title and author on the title page, the table of contents and the title page ornament.

You can also change the font for the whole book at once (“all the typography”), as well as the page margins.

Page breaks before chapter, part or section titles can be turned on and off. In novels, each chapter also opens on a right-hand (odd) page, just like in a printed book.