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Digitising

Auto-digitising or a human digitiser: what each does well, and when to pay

An honest comparison of automatic embroidery digitising and manual digitising: what software decides, what a person decides, typical prices, and which jobs need which.

6 min read · Published September 21, 2026

Digitising is the step between a picture and an embroidery machine: deciding, stitch by stitch, where the needle goes. For thirty years it has been skilled manual work done in software that costs as much as the machine. Automatic digitising has been around nearly as long and has mostly earned its bad reputation. This guide sets out what each approach actually decides, where the automatic kind has improved and where it has not, and how to choose for a given job.

What a digitiser decides

Whether a person or a program does it, the same decisions get made:

  1. Which areas are objects, and in what colour. Separating the artwork into shapes and reducing its colours to threads.
  2. The stitch type for each object. Running stitch for fine lines, satin columns for narrow shapes and lettering, tatami fill for areas.
  3. Stitch direction. Which way a fill runs, and how a satin column turns as the shape bends. Direction changes how light reflects, so it is also how embroidery suggests form.
  4. Underlay. The hidden first layer that stabilises the fabric and lifts the top stitching: a centre run under narrow satin, zigzag or edge runs under wide satin, a tatami grid under fills.
  5. Compensation. Stitches pull the fabric in along their length and push it out across it. Shapes are widened 0.15 to 0.4 mm to come out the intended size, and neighbouring colours are overlapped so no gap opens.
  6. Density. Row spacing, about 0.4 mm for standard thread, lighter on stretch fabrics and leather.
  7. Sequence and pathing. The order of colours and objects, where each starts and ends, how the machine travels between them, where it ties off and trims.

A manual digitiser makes these choices with knowledge of the fabric, the machine and the look the customer wants. Software makes them from geometry.

Where automatic digitising fails, and why

Most of the bad reputation comes from tools that skip decisions rather than make them badly. When we looked at how one widely used free online converter works, in September 2026, it sampled the picture on a grid of under a millimetre per cell at a fixed 85 mm, allowed four colours, filled wide areas with unstaggered horizontal rows 0.75 mm apart, called horizontal scanlines "satin", wrote no underlay at all, and offered fabric choices that changed the advice text but not one stitch. It then graded its own output and offered a paid manual fix.

The recurring faults of poor auto-digitising, and what causes each:

| Fault | Cause | |---|---| | Design sinks into the fabric, edges ragged | No underlay | | Puckering on knits, gaps between colours | No pull compensation, no overlap | | Hundreds of tiny stitches, thread breaks | Anti-aliased or JPEG edges turned into objects | | Flat, lifeless fills | Every fill at the same angle, no stagger | | "Satin" that looks like a barcode | Straight rows instead of columns that follow the shape | | A trim every few stitches | Every fragment sequenced as its own object | | Letters closed up into blobs | No size check: strokes under 1 mm stitched as satin anyway |

None of these is inherent to automation. They are all things software can do correctly, and measure.

What good automatic digitising does now

The image to embroidery tool here was built against that list. In short: artwork is read at 0.1 mm per pixel; compression halos and specks are folded into their neighbours before any object exists; stitch type is chosen from measured width, with a triple running stitch under 0.9 mm, satin columns laid across the medial axis so they turn with the shape up to 3.4 mm, and staggered tatami above that; every fill gets an edge walk and, above 30 mm², a tatami underlay sewn across the top stitching; rows are lengthened by the chosen fabric's pull compensation; each colour runs under the next; small shapes inside another colour are stitched on top of an unbroken fill; and travel inside a shape is sewn as running stitches ahead of the rows that will cover it, not as jumps. Then the result is measured, and you see the measurements. The pipeline guide has every number.

That produces a file that sews properly for a large class of artwork: logos, badges, mascots, bold lettering, clipart.

What still needs a person

Software chooses from geometry. It has no idea what the picture is.

  • Direction as drawing. A digitiser runs the stitches of a horse's neck along the muscle and the mane along the hair. Software picks an angle per colour.
  • Small lettering. Under about 5 mm, a digitiser redraws letters for thread: opens counters, drops serifs, swaps to a running-stitch font. Software can only warn and simplify.
  • Gradients and shading. Blending two thread colours with graded density is a manual technique.
  • Fabric extremes. Caps sewn from the centre out, 3D foam, towels with knock-down stitching under the design, leather.
  • Judgement about what to leave out. A person simplifies a logo the way its designer would. Software drops whatever is below the size threshold.

If any of these describes your job, pay the digitiser. If you run a shop, the question is usually economic: an automatic file in a minute for a one-off gift or a sample, a manual file for the customer logo you will sew five hundred times.

What each route costs

  • Manual digitising service: roughly 10 to 50 dollars per logo, more for large or complex work, turnaround from an hour to a few days. You get a file tuned by a person, and revisions.
  • Desktop software with auto-digitise (Hatch, Embird, PE-Design, SewArt): about 75 to over 1,000 dollars once, plus the time to learn it. The automatic result is a starting point you edit.
  • Ink/Stitch: free and capable, but it does not convert a bitmap to stitches; you trace to vector and assign stitch parameters to every object yourself.
  • Online automatic digitising: free to a few dollars per design or a small subscription. Quality varies from none to good; judge by whether the tool tells you about underlay, compensation and density, and whether it lets you see the stitches before paying.

Whichever you choose, the cost of a bad file is higher than any of these: a ruined garment and a machine stopped for a thread break. Pricing a job should include the test sew.

How to decide in one minute

  1. Is there lettering under 5 mm, a gradient, or fine line work? Manual.
  2. Is it going on a cap front, a towel or leather, or sewn in the hundreds? Manual, or automatic as a draft for your digitiser.
  3. Is it a bold logo, badge, mascot or clipart with flat colours? Try automatic first. Read the audit, drag the compare slider over the small parts, and run the file through the pre-flight check.
  4. Either way, sew it once on scrap of the same fabric with the same backing before the real thing.

Automatic digitising has not replaced digitisers. It has replaced the wait and the fee for the many jobs that never needed one.

Questions

How much does it cost to have a logo digitised?

Manual digitising services typically charge between 10 and 50 US dollars for a logo, depending on complexity and turnaround, and more for jacket backs. Desktop digitising software runs from about 150 to over 1,000 dollars. Automatic online digitising ranges from free to a few dollars a design.

Is auto-digitising good enough to sell?

For bold logos and simple artwork, often yes after a test sew. For small lettering, fine lines, gradients, fur or anything a customer will scrutinise, a digitiser's judgement still shows in the result.

What goes wrong with auto-digitised files?

The classic faults are no underlay, one density for every fabric, fills all running the same way, satin stitched as straight rows instead of turning with the shape, tiny stitches around compressed edges, gaps between colours, and a jump or trim for every fragment.

Can I fix an auto-digitised file myself?

You can clean it: remove tiny stitches, merge colour blocks, split long stitches. You cannot add underlay or change stitch direction without re-digitising, which is why it matters that the generator gets those right to begin with.

How long does manual digitising take?

A simple left-chest logo takes an experienced digitiser 20 to 60 minutes. Services quote turnarounds from an hour to three days, mostly depending on their queue and what you pay.