# TRNSFR Lab — what you can sell on Etsy

> Markdown companion to https://www.trnsfr.io/lab. Six Etsy categories that routinely exceed Etsy's 20 MB native delivery cap, with typical file sizes and what TRNSFR ships for each.

## Why the Lab exists

Etsy's native digital-attachment delivery is capped at 20 MB. Anything larger has to be delivered some other way — usually a Dropbox / WeTransfer / Drive link in a buyer message. That works until the link expires, gets shared, or the seller can't prove it landed. The Lab shows the categories where this hurts most and how TRNSFR handles each one.

## 1. Print-at-home art & posters — High-res, large-format, branded

Typical files: A4 to A0 prints at 300 DPI, 80 MB to 600 MB each. PSD source files, layered TIFFs, RAW exports.

What TRNSFR ships:
- No size cap (up to 1 GB per file).
- On-brand portal — buyer sees the seller's identity, not a generic file share.
- Per-order download caps prevent the same file going out to a dozen devices.

## 2. Wedding & event invitations — Personalised PDFs, sent the moment they buy

Typical files: print-ready PDFs at 300 DPI, 5 MB to 200 MB depending on guest count and design complexity.

What TRNSFR ships:
- Auto-delivery the second the order completes — buyer pays at 2am, gets the PDF at 2am.
- Branded delivery emails so the invite looks like part of the shop.
- Open and download tracking — sellers know it landed.

## 3. Digital planners & journals — Multi-file bundles without ZIPs

Typical files: hyperlinked PDFs, GoodNotes packs, dated and undated variants. Often 5-20 separate files per product, 50 MB to 500 MB total.

What TRNSFR ships:
- Per-file delivery (no ZIPs needed) — each file has its own download counter.
- Re-send any single file individually, so refunds and corrections are surgical.
- Version control per template — when you update the master, every existing buyer's copy can re-issue.

## 4. Audio & sample packs — Multi-GB delivery without bouncing the buyer

Typical files: WAVs, stems, MIDI, presets. Pack totals frequently hit 5 GB+.

What TRNSFR ships:
- Up to 1 GB per file; bundle as many files as you like so a 5 GB pack splits into clean per-file downloads.
- Per-file download counters so the seller knows what got delivered.
- License watermarking on supported formats.

## 5. Video tutorials & courses — No more "DM me for the Drive link"

Typical files: course modules at 4K (200 MB to 2 GB each), full-length tutorials, raw lesson footage.

What TRNSFR ships:
- Device-cap protection so the file doesn't end up on a torrent site by week two.
- Per-module expiry windows for tiered course access.
- Re-download credits you control — buyers can request additional downloads, sellers approve.

## 6. Fonts & design asset packs — License the work, not the leak

Typical files: font families (TTF/OTF/WOFF), vector packs, SVG bundles, mockup PSDs. Often 20 MB to 500 MB per pack.

What TRNSFR ships:
- AV-scan badge per file so the buyer trusts the download.
- Time-bound download windows so an old order can't keep handing out free copies forever.
- Per-buyer audit log: who downloaded what, when, on how many devices.

## What sits behind every category

- Up to 1 GB per file.
- AV-scanned uploads with clean-scan badge.
- Branded customer download portal per shop.
- Per-order expiry windows + device caps.
- Multi-shop support from one dashboard.
- Direct Etsy API integration — no Zapier, no plugins.

## Sign up

https://app.trnsfr.io/signup