Runs on your computer — nothing is uploaded

Every print size your buyers
want, from one design

Drop in one high-resolution file. Get a complete, correctly-tagged print bundle, a size guide for your buyer, and listing text you can paste straight into Etsy.

No account. No upload. The preflight report is free forever.

The Frameproof preflight report, showing pixel size, DPI tag, the largest honest print size, and a crop preview.

The report tells you what your file can honestly print — measured from the pixels, not the label.

What quietly goes wrong

Three things quietly cost printable sellers money

None of them are visible until a buyer complains or an upload fails.

01

Your exporter lies about DPI

Canva writes 96 DPI into files that are physically large enough for a 24×36 poster. That tag tells software how big the image claims to be — so a 3,600-pixel design announces itself as a 37-inch poster, and a buyer printing at "Actual size" gets something other than what they paid for.

02

Resizers stretch without telling you

Most "resize for Etsy" tools will happily blow an 800px image up to poster size — some sell it as a feature. The file then passes every automated check, so there is no moment where anything tells you it will print soft. You find out from a customer, or you never quite stop wondering.

03

Etsy's 20 MB wall

Every uploaded file, ZIP included, is capped at 20 MB. Sellers ship eight separate files per ratio and blow straight through it — for no benefit, because within one ratio every size is the same image.

The difference

Frameproof would rather say no

Any tool can make a file the right number of pixels. The useful question is whether the print will actually look good.

A typical resizer

  • Upscales silently to whatever size you asked for
  • Keeps whatever DPI tag your exporter wrote
  • Gives you files, and no idea if they will fit Etsy's limit
  • Uploads your unreleased artwork to someone's server
  • Charges every month, forever

Frameproof

  • Refuses to upscale — tells you the largest honest size instead
  • Rewrites the DPI tag so the file prints at the size it should
  • Measures your actual artwork to predict the ZIP size
  • Never uploads anything. There is no server to upload to
  • One payment. Works offline, forever
How it works

One file in, a finished product out

1

Drop in your design

One high-resolution master. It is read directly in your browser — it never travels anywhere.

2

Read the honest report

What it really prints at, what each ratio will crop, and the largest size that still holds 300 DPI.

3

Build the bundle

Correctly-tagged files grouped by ratio, a size guide for your buyer, and your listing text.

Ratio selection, showing for each ratio the largest size it can honestly fill and how much of the design it crops.

Every ratio states the largest size it can honestly fill, and how much of your design it crops.

What your buyer receives

A finished product, not a folder of images

Most refund requests come from a buyer not knowing which file to print. So that question gets answered in the box.

The packaging step, listing each file the buyer will receive with its DPI and estimated size, and the running total against Etsy's 20 MB limit.
📁
One file per ratio, grouped and named in plain English “2-3 ratio (4x6 to 12x18) / 12x18 inches.jpg” — not “output_final_v2.jpg”.
📄
A printed size guide (PDF) Shows the proportion of each ratio, every size it prints at, and which file to use.
📝
A plain-text README For buyers who never open the PDF. Same information, no formatting required.
🏷️
Your Etsy listing text — for you, not the buyer Description, size list, terms, a title starter and suggested tags. Generated from the actual bundle, so it cannot drift out of sync with the files.
Pricing

Buy it once

It runs on your computer, so there is nothing for anyone to bill you for monthly.

$39
one payment · yours forever
  • Unlimited designs, unlimited exports
  • All ten print ratios, including ISO A-series
  • Buyer size guide + your listing text
  • Works completely offline
  • Free updates to version 1.x
  • Use it for every shop you own
Get Frameproof

Not what you expected? Email within 30 days and you get your money back. Keep the file — chasing a download is not worth either of our time.

Want to see it work first? The preflight report is free — run your own design through it before deciding.

Questions

Straight answers

Is my artwork really not uploaded?

Really. Frameproof is a single HTML file that runs in your browser using your computer's own processor. There is no server component at all — once you have downloaded the file you can disconnect from the internet entirely and it will keep working. You can verify this yourself: open it, turn off your wi-fi, and use it.

What if my design is too small?

It tells you, in inches, and stops there. If your file can honestly fill a 12×18 but not a 24×36, it will build the 12×18 and explain why the larger size is missing. You can override this if you genuinely want an upscaled file, but it is off by default and clearly labelled — because a soft print is a refund.

Why one file per ratio instead of one per size?

Because within a single aspect ratio, every print size is the same image. A 2:3 file good enough for 24×36 is the identical file a buyer prints at 4×6. Shipping eight copies is how sellers blow through Etsy's 20 MB cap for no benefit. The size guide tells your buyer every size their file covers. If you prefer one file per size, there is a switch for that.

Does it work on a Mac / Windows / iPad?

On any Mac, Windows or Linux computer with a modern browser — Chrome, Edge, Firefox or Safari. There is nothing to install and no admin rights needed. Not on iPad or phones: they will not run a downloaded HTML file. The free report on this site does work there, so you can check your files from anywhere. Very large files are limited by your device's memory rather than by the software; a 78-megapixel master works comfortably on an ordinary laptop.

Will it make my low-resolution design print well?

No, and nothing can. Detail that was never captured cannot be restored, whatever a tool claims. What Frameproof does is tell you the truth about what you have, so you can re-export at a larger size before a buyer finds out for you.

Can I use it for print-on-demand as well as digital downloads?

Yes. The preflight checks against Printify, Printful, Amazon Merch and Redbubble specifications as well as Etsy's. The bundle itself is built around the standard frame ratios, which is what printable listings need.

What happens if I lose the file?

The download link in your Gumroad receipt keeps working, so you can fetch it again any time. Lost that too? Email support and you get the file again. There is no key to keep track of: the file is the full version, and it works on every computer you copy it to.

Run your own design through it

The report costs nothing and takes about ten seconds. If it tells you your files were fine all along, that is a useful thing to know for free.

Check your design free