How to digitize lettering

How to digitize lettering for embroidery: satin columns, minimum letter heights by font, spacing and kerning, underlay, small text on caps and lettering tools.

Updated · 8 min read

Stitched Block and Script alphabets side by side on white fabric

Lettering is the most common thing people embroider, and the least forgiving. A logo with a slightly soft edge still reads; a name with one letter filled in doesn't. Thread has width, it pulls the fabric as it sews and it sinks into texture, so letters that look crisp on screen need planning to come out crisp in stitches.

Digitizing lettering means deciding how each letter sews: the stitch type, the stitch direction, what goes underneath, how wide each stroke ends up and how far apart the letters sit. This guide covers each decision, with the minimum sizes of the 12 lettering styles in the embroidery font previewer. For a name or phrase on its own, text to embroidery does the digitizing for you.

Satin columns: how letters are sewn

Most embroidered letters are satin stitches: closely spaced stitches that zigzag from one edge of a stroke to the other, giving lettering its smooth, glossy look. The stitch direction turns with each stroke, so the stitches stay across the stroke around curves and into corners. The width of each stroke decides how it can be sewn:

Stroke widthStitchWhere you see it
Under about 0.75 mmRunning or bean stitchHairlines, tiny text and thin outlines
About 1–6.5 mmSatinAlmost all lettering
Over about 6.5 mmFill (tatami), sometimes with a satin borderLarge block and varsity letters, where long satin stitches would snag

Embrizo uses satin for strokes up to 6.5 mm wide and switches wider ones to fill. Around 0.8 mm is the practical floor for a satin column: below it the needle holes crowd together and the stroke breaks up. The satin stitch entry and the satin vs fill guide explain the widths.

Minimum letter sizes by font

Letter height is measured on a capital. These are the smallest sizes that stay readable on flat, stable fabric for each lettering style:

StyleFontsSmallest capital height
Bold and soft sansBlock, Sport, Rounded5 mm
Condensed and heavyTall, Varsity6 mm
SerifSlab, Roman7 mm
Elegant serifClassic8 mm
ScriptScript, Retro, Brush10 mm
Flowing scriptFlowing12 mm
  • Check the lowercase. It's smaller than the capitals in the same font. If letters such as a, e and o drop under about 4 mm, switch to capitals or enlarge the text.
  • Add 1–2 mm on texture. Piqué, fleece and terry hide thin stitches.
  • Watch the counters, the holes inside a, e, o and similar letters. Under about 1 mm, thread spread closes them up.

The lettering size calculator shows how tall your text comes out at a given width, per font, and whether it will sew cleanly. The small text guide explains why letters fill in below these sizes.

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Spacing and kerning

Thread spreads a little as it sews, and pull compensation widens each stroke on purpose, so letters set at their screen spacing can touch once stitched. Lettering for embroidery usually needs more room than print:

  • Open up the letter spacing a little, more on knits and at small sizes, so satin columns don't run into each other.
  • Kern awkward pairs by eye, such as AV, LT, To and WA. Even-looking gaps between letters matter more than equal measured spacing.
  • Leave room between words, a little more than the letter spacing, so a name reads at a glance.
  • Give two-line text air. Lines set too close read as one block, so leave a clear gap between them and center each line.
  • Keep the baseline straight. A wavy baseline usually means the fabric moved, not a spacing problem, so check the hooping and the backing.

Print the lettering at actual size and look at it from arm's length. Gaps that look generous on screen are often just right in thread.

Underlay and pull compensation

Underlay is a light layer of stitches sewn first, under the satin. It anchors the fabric to the stabilizer and gives the top stitches something to sit on, so letters stand up instead of sinking. Each width of column gets its own kind:

Column widthUsual underlayWhat it does
Narrow strokesA center run down the middleAnchors the fabric without bulking up thin letters
Medium strokesEdge runs just inside both edgesHolds the edges in place and gives a crisp, slightly raised border
Wide strokesA zigzag, often over edge runsLifts the satin and covers more of the fabric

Pull compensation makes each stroke slightly wider than drawn, because satin pulls the fabric in across the stitch. Embrizo adds 0.2 mm per side on wovens, so a 1 mm stroke is sewn about 1.4 mm wide and the fabric's pull brings it back toward the drawn width; the knit, stretch and fleece presets add more. Too little and letters come out thin; too much underlay makes small text lumpy. The underlay and pull compensation entries go deeper.

Lettering on a filled badge is a special case. Small letters sewn on top of the fill keep their edges if the fabric shifts, while letters cut out of the fill lose theirs to gaps. The digitizer sews details up to 2.5 mm wide on top of the fill beneath them automatically.

Small text on caps and textured fabric

  • Caps: a structured cap front has only about 2–2.25 in (50–57 mm) of height, and the thick, curved front swallows thin strokes, so keep letters at least 6–7 mm tall, in bold capitals. On six-panel caps, keep small text off the center seam. The cap front size page shows the space.
  • Sewing order on caps: caps sew best from the center out and from the bottom up. Embrizo orders stitches to keep trims down rather than specifically for caps, so test fine lettering on a spare cap, or use a professional digitizer for small text on structured caps.
  • Piqué, fleece and towels: add 1–2 mm to the letter height, lay a water-soluble topping on top so the satin stays on the surface, and choose the knit or fleece preset for heavier underlay.
  • Very small text: some digitizers sew tiny lettering with 60-weight thread and a 65/9 or 70/10 needle instead of 40-weight and a 75/11, which keeps letters crisp. Below about 4 mm, a running or bean stitch often reads better than a crowded satin.

The hat embroidery guide covers cap types and frames, and the stabilizer pages for caps and polo shirts give the backing and topping for each.

Built-in lettering, a lettering file or the whole design?

OptionGood forWatch out for
The machine's built-in fontsQuick names and initials at the machine, such as the 10 lettering fonts on the Brother SE700A limited choice of styles and sizes, edited on a small screen
A lettering file from text to embroideryNames, monograms and short phrases of up to three lines, in 12 fonts and any machine formatLettering only; text that's part of a logo belongs in the logo's file
The monogram makerClassic one- or three-letter monogramsInitials only; the letter order guide explains which letter goes where
Digitizing the whole design in the digitizerLettering that's part of a logo, badge or artwork, so text and graphics are sized togetherThe letters must be big enough in the artwork; convert SVG text to outlines first
A professional digitizerLettering under about 4–5 mm that must stay readable, and fine text on structured capsA fee per design and a wait

Trying fonts and sizes in the lettering tools is free, and so are digitizing and previewing in the digitizer with your account. Downloading the files needs a plan, from $8 a month billed yearly.

Step by step: digitizing a name or slogan

  1. Measure the space on the actual item and decide the width, leaving a margin. The embroidery size chart gives standard sizes for each placement.
  2. Pick a font and check its minimum height above. Use one font, or two that contrast clearly, such as a script name over a block tagline.
  3. Type the text into text to embroidery, set the width and read the letter height it shows. If it's under the font's minimum, split the text over two lines or choose a narrower font such as Tall or Sport.
  4. Choose the fabric type, so knits and fleece get heavier underlay and more pull compensation, and a thread color with good contrast to the fabric.
  5. Check the stitch preview for touching letters, closed counters and thin joins in scripts.
  6. Download your machine's format with a plan, then test-sew on a scrap of the same fabric with the same backing and topping.
  7. Keep a note of the font, size and thread for repeat orders, so every piece matches.

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FAQ

Questions

The quickest way to see what it does with your artwork is to try it. With a free account, digitizing and previewing cost nothing and take about a minute.

How do you digitize text for embroidery?

Sew most letters as satin columns with underlay, keep every stroke at least about 1 mm wide and set capitals at least 5 mm tall in bold sans fonts, 7–8 mm in serifs and 10–12 mm in scripts, with extra letter spacing. For a name on its own, a lettering tool such as text to embroidery does the digitizing for you.

Should embroidery lettering be satin or fill?

Satin for almost all lettering, from strokes about 1 mm wide up to about 6.5 mm. Wider strokes, as in large block or varsity letters, switch to fill so long stitches don't snag. Strokes under about 0.75 mm sew as running or bean stitch.

How do I make small embroidered letters readable?

Choose a bold sans font with open counters, use capitals, add letter spacing and keep strokes at least about 1 mm wide. Use a topping on textured fabric, and consider 60-weight thread with a smaller needle for very small text.

Can I use any font for machine embroidery?

Not every font sews well. Thin serifs, hairline scripts and very condensed fonts lose their thinnest parts in thread, while bold fonts with even strokes stitch best. Any font also has to be digitized into stitches before a machine can sew it.

How small can lettering be on a cap?

Keep it at least 6–7 mm tall, in bold capitals. A structured cap front has only about 2–2.25 in (50–57 mm) of usable height, and its thick, curved surface swallows thin strokes, so two lines of text get small quickly.

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