Key takeaways
  • Embroidery machines sew stitch files (DST, PES, JEF, EXP, VP3), not images like JPG, PNG or PDF.
  • A digitizer chooses stitch types, density, underlay, pull compensation and sewing order for the fabric and size.
  • The same logo often needs different files for a polo, a cap and a jacket back.
  • At PlixaLabs each design has one flat price, set by its complexity, and arrives in 4–8 hours as standard.

Why can’t an embroidery machine sew a JPG?

Because an image only describes colors in a grid of pixels, and a machine needs movement instructions. A JPG, PNG or PDF says “this area is navy.” It doesn’t say where the needle goes in, which direction the thread should lie, how close each stitch sits to the next, or which part sews first.

A stitch file holds exactly that: a long list of needle positions plus commands for jumps, trims, color-change stops and the end of the design. Some formats also store thread colors. DST, the Tajima format that almost every commercial machine reads, doesn’t. Brother’s support site notes that DST data “does not contain specific thread color information.” Our embroidery file formats guide covers each format.

Turning the picture into those instructions is the digitizing. Software helps, but the decisions are what make a file sew well.

What does a digitizer decide?

A digitizer makes six kinds of decision for every design. Each depends on the finished size, the fabric and the machine.

Stitch types: running, satin and fill

Stitch typeWhat it looks likeUsually used for
Running stitchA single line of stitches, like hand sewingFine outlines, small details, travel paths hidden under other stitches
Satin stitchLong, shiny stitches laid side by side across a narrow shapeLettering, borders and narrow columns
Fill (tatami) stitchRows of shorter stitches in a pattern that covers an areaLarge shapes and backgrounds, where satin stitches would be too long

Choosing the wrong type is one of the most visible faults. Satin stitches that are too long can snag and look loose, while a fill squeezed into a very narrow shape can look ragged.

Density

Density is how closely rows of stitches sit together. Too loose and the fabric shows through. Too tight and the design turns stiff, puckers the fabric or breaks thread. The right density depends on the thread, the stitch type and the fabric, so there’s no single correct number.

Underlay

Underlay is a light layer of stitches sewn first, underneath the visible stitches. The Ink/Stitch documentation describes it as an initial layer that holds up the final stitches. It stabilizes the fabric, stops top stitches sinking into fleece or towel, and keeps edges crisp. Our puckering and underlay guide explains the common types.

Pull (push-pull) compensation

Stitches pull fabric inward along their direction and push it outward at the ends. Left alone, a circle can sew as an oval and letters come out thinner than drawn. Compensation widens shapes slightly in the direction of pull so the sewn result matches the artwork.

Sequencing, jumps and trims

The sewing order controls how the fabric moves while the design sews. A good sequence works from the center outward or from background to foreground, finishes each color before moving on, and avoids long jumps. Trims cut the thread between separate areas so there are no loose strands to clip by hand.

Tie-ins and tie-offs

Tiny locking stitches at the start and end of each section stop the thread from unravelling. They matter most on garments that are washed often, like uniforms and workwear.

PlixaLabs

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How does a design become a stitch file?

Professional digitizing follows the same six steps, whatever software is used.

  1. Brief. Finished size, garment and fabric, placement, thread colors and the machine or file format.
  2. Artwork review. The digitizer checks what will sew cleanly at that size and flags very small text or fine lines.
  3. Digitizing. Each shape is rebuilt as stitch objects with the right stitch type, angle, density, underlay and compensation.
  4. Sequencing. Objects are ordered to limit jumps, trims and color changes.
  5. Stitch simulation. A preview shows how the stitches lie before any thread is used.
  6. Export and test. The file is saved in the formats the machine needs, then test-sewn and adjusted if something needs a change.

Before you sew a new file on real garments, check it on screen. Our guide to checking an embroidery file walks through it with the free DST file viewer.

What is the difference between manual and auto-digitizing?

Auto-digitizing is software that traces an image and generates stitches automatically. Manual digitizing means a person builds each stitch object and sets its properties. Many digitizing programs include both: Hatch Embroidery, for example, lists manual digitizing and auto-digitizing among its tools.

Auto-digitizing is quick and can be acceptable for simple, bold shapes. It applies general settings, though, so it can’t know that your logo is going on a stretchy performance polo or a structured cap. Common results are poor stitch angles, extra trims, weak underlay and small text that doesn’t read. We look at this in more depth in Can AI digitize embroidery?

What artwork do you need for digitizing?

The clearest version of your logo you have. A vector file (AI, EPS, SVG or PDF) is best, a sharp PNG or JPG is fine, and a straight-on photo of existing embroidery can often work. Add the garment, placement and finished width or height. The full checklist is in our artwork requirements guide.

How long does digitizing take and what does it cost?

At PlixaLabs, standard files arrive in 4–8 hours. Rush (2–4 hours) and super rush (1–2 hours) are available for +50%.

Prices are set per design rather than per 1,000 stitches: every design has one flat price set by its complexity, with all machine formats, unlimited revisions and a stitch simulation preview included. See the price list.

For how other services charge, including the per-1,000-stitch model, read how much embroidery digitizing costs.

Can I digitize embroidery myself?

Yes, if you have the software and the time to learn. Ink/Stitch is a free, open-source digitizing extension for the Inkscape vector editor, and paid programs such as Embrilliance StitchArtist and Hatch Embroidery are aimed at home and small-business users. Expect test sew-outs and adjustments on your first designs.

Our step-by-step guide to digitizing a logo shows the process, and digitizing software vs a digitizing service helps you decide which route suits your volume.

Frequently asked questions

Embroidery digitizing is the process of turning a logo or artwork into a stitch file that an embroidery machine can sew. A digitizer plans each stitch’s type, direction, density and sewing order, adds underlay and pull compensation for the fabric, and saves the result in the machine’s format, such as DST or PES.
No. Vectorizing redraws artwork as clean, scalable shapes for printing, cutting or engraving. Digitizing creates stitch-by-stitch instructions for an embroidery machine. A vector file is useful artwork for a digitizer, but a machine cannot sew it.
Usually, yes. Caps are sewn on a curved frame, split by a center seam and often stiff, so a cap file needs a different sewing order and more compensation than a flat file. See our cap digitizing guide.
Small size changes are often fine. Larger changes alter stitch length and density, which can leave gaps or make the design stiff. For a big change in size, have the design re-digitized at the new size.

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