Projects · Businessintermediate~4 min read

Selling digital files

Short answer

A file business sells a design many times with no material, no finishing and no shipping, which is why the margins are high. The cost is that the file has to work on machines and software you will never see. Cut every design yourself before you list it, ship the formats buyers actually use at a stated size, show a photo of the real cut piece, and say plainly what the buyer may do with it.

Why it is a different business

	Finished pieces	Files
Cost of each sale	Material, machine time, finishing, packing, shipping	Platform fees, and close to nothing else
What limits growth	Hours in your week	The size and quality of your catalogue
Price per sale	Higher	Much lower, made up in volume
Support	Shipping damage, wood variation	"It will not open", "it cut the wrong size", "my software says open vectors"
Who the customer is	Someone who wants the object	Another maker, often one who will sell what they cut

Cut it before you sell it

The single rule that separates a file shop people come back to from one they warn each other about. A design that looks right on screen can still have open paths, stacked duplicate lines, detail finer than any bit can reach, or a 3D model with walls too steep to machine. You find those by toolpathing and cutting the design, and no other way.

CNC files lists what a buyer should check before buying a file. Read it as the seller: it is your quality checklist, written from the other side of the counter.

What goes in the download

The formats people use. For 2D work that means SVG and DXF at minimum. For relief work, STL. If you design in Vectric software, the native file is a genuine bonus for other Vectric users.
A stated size and units. Put the designed size in the listing and in a text file in the download. DXF in particular does not reliably carry its units, and "it imported tiny" is the most common support message in this business.
Clean geometry. Closed vectors, no duplicates, sensible node counts, text converted to outlines. See vector troubleshooting.
A short read-me. The size, the bit or bits you cut it with, the material, and anything unusual. A photograph of your toolpath settings saves a lot of email.
A photograph of the real cut piece as the listing image. A render says the design exists. A photo says it cuts.

Be careful what you promise about settings

Tell buyers what you used. Do not tell them what to use. Their machine, bit and material are not yours, and feeds and speeds copied from a listing onto a lighter machine is how bits get broken. State it as what worked on your setup and point them at their own tooling chart.

Licences: say what the buyer can do

A file sale is a licence, not a transfer of ownership. You keep the copyright and grant permission to use the design. What you grant is up to you, and the listing should say it in plain words.

Question	The common answer
May they make pieces for themselves and as gifts?	Yes. This is a personal licence.
May they sell physical pieces they cut from it?	Usually yes, under a commercial licence, sometimes with a quantity limit. This is what most maker customers want.
May they share, resell or give away the file itself?	No. This is the line nearly every file seller draws.
May they alter it and sell the altered file?	No, for the same reason.
May they claim the design as their own?	No.

The three questions every file buyer has. Answer all three in the listing.

Write it once, keep it short, and put the same wording in every listing and in the download. A buyer who cannot find your terms will assume whichever answer suits them.

Your designs have to be yours

Everything under legal basics applies with more force here, because a file is copied and resold in a way a finished sign is not. No team logos, no characters, no traced artwork you found online, no tracing of another seller's design. If you generated part of a design with AI, know that the copyright position of AI generated work is unsettled and marketplaces have their own disclosure rules, so read the current policy before you list.

When files get pirated

They will be. Files get shared in groups and reposted by other sellers. Marketplaces have an intellectual property reporting process, and reporting a copied listing generally works when you can show your original and its date. Beyond that, the defence that actually holds is a catalogue that keeps growing and a name buyers trust, because a pirate can copy last year's files and cannot copy next month's.