Image guides
What each platform actually asks for, why uploads get rejected, and the handful of technical details — DPI, EXIF, formats — that cause the most confusion.
- Etsy Listing Photo Size and RequirementsThe dimensions Etsy asks for, why undersized photos look blurry in the listing grid, and how to prepare a full set without an image editor.
- How to Compress an Image to an Exact File SizeUpload limits are stated in megabytes, not quality units. Here is how to hit a specific number, and what to do when compression alone cannot get you there.
- Amazon Product Image RequirementsAmazon enforces its image rules more strictly than any other marketplace. Here is what they are and which ones will get a listing suppressed.
- eBay Photo RequirementsThe minimum eBay accepts, the size that actually unlocks zoom, and the two policies that block listings outright.
- YouTube Thumbnail Size and the 2MB LimitAlmost every guide online repeats numbers YouTube has moved on from. Here are the current specifications, and why the 2MB wall only affects some people.
- Instagram Image SizesThe dimensions for every placement, why portrait posts win, and the upload settings that stop Instagram destroying your image quality.
- What EXIF Data Reveals About Your PhotosEvery photo carries a block of hidden information. Some of it is harmless, some of it is your home address, and almost nobody has looked.
- 300 DPI for Print, ExplainedThe most misunderstood number in digital imaging. What it means, how many pixels you actually need, and why changing it sometimes appears to do nothing.
- JPG vs PNG vs WebPOne rule decides it almost every time. Here is the rule, the exceptions, and what each format is actually doing to your image.
Or go straight to a tool
Every guide links to the tools that do the job. If you already know what you need, the full tool list is on the homepage.