Print guides

How to Check an Image’s Resolution on Windows, Mac, iPhone and Android

Step-by-step for every device, which number to look at, and which one to ignore.

5 min read

How to Print AI Art Sharp: Sizes, Upscaling and Common Problems

How far a 1024 px image goes, the upscale factor for popular sizes, and what to fix before printing.

7 min read

Print-on-Demand Image Requirements: A Guide for Gelato, Printful and Printify Sellers

Resolution, templates, transparency and colour: how to prepare designs that print well on shirts, mugs and wall art.

7 min read

Best File Format for Printing: JPEG vs PNG vs PDF vs TIFF

A quick table of formats, when to use each, and the ones that cause trouble.

6 min read

RGB vs CMYK: Which Colour Mode Should You Use for Printing?

Why screens and ink show colour differently, who wants which mode, and how to avoid dull prints.

6 min read

DPI vs PPI: What’s the Difference When Printing?

What each term means, which one your printer cares about, and why “change it to 300 DPI” on its own does nothing.

5 min read

How Many Pixels Do You Need to Print? (With Viewing Distance Chart)

One formula for any print size, a ready-made chart of common sizes, and why big posters can get away with less.

6 min read

How Big Can I Print My Photo? Megapixels to Print Size Chart

A chart from 8 to 61 megapixels showing the biggest sharp print at 300, 240 and 150 DPI.

5 min read

Etsy Printable Wall Art: Sizes, Ratios and Resolution

The five ratio files to include, the exact pixels for each, and how to keep them under 20MB.

7 min read

How to Fix a “Low Resolution” Warning Before Printing

What the warning really means and five fixes, from finding the original file to AI upscaling.

6 min read

Can AI Upscaling Fix a Low-Resolution Image for Print?

How AI upscalers work, where the 2× to 4× sweet spot comes from, and the images that upscale badly.

6 min read