Instructions – All Font Versions

This page explains the file formats included with our fonts and which one to use for your software or workflow.

Quick Start

1. Download and unzip your file.
2. Install the font (TTF/OTF) if needed.
3. Use OPF and FontLab Pad formats inside supported programs (they are not installed like normal fonts).

All of our fonts begin with SLF to make them easy to find.

Installation (TTF and OTF)

Windows: Extract the ZIP, then right-click the font file and choose Install.
Mac: Open the ZIP, then double-click the font file and install in Font Book.

Important Notes

Our fonts are designed for engraving, CNC, laser, sketch/pen tools, and other single-line workflows. Because they are hairline fonts, they may not display or print well in word processing programs (like Microsoft Word).

Font Formats

TTF (TrueType)

TTF – single line, two-pass stroke
Your machine follows the same single line path twice for stronger visibility. There are no outlines.

OPF (Open Path Format)

OPF – open path single-stroke format
Your machine follows the line once (true open path). There are no outlines.

OPF files are not installed like regular fonts. They are used inside supported programs such as:

Sure Cuts a Lot (version 5+)
StarCraft Solo / StarCraft CREATE
LightBurn (see our LightBurn blog post)

OPF fonts are not intended for word processing programs or cutter software that does not support open paths.

OTF (FontLab Pad)

OTF – FontLab Pad format
Use FontLab Pad to type text and export true single line SVG for use in other programs that accept SVG files.  For detailed steps, see: Instructions - FontLab Pad