Guides, page 7
How to cut out a picture in the app you already use, what a transparent PNG really is, and which background each place wants. Every method is tested, and every tool is named with whether it uploads your photo.
Zoom virtual backgrounds: size, format and a clean image
Zoom's virtual background rules checked September 2026: 24-bit PNG or JPG up to 15 MB, 1280 x 720 minimum, video files, green screen, and the mirror setting.
17 Sept 2026
Alpha channel, in plain words
What an alpha channel is: the fourth value in each pixel that sets how see-through it is. 8-bit alpha, soft edges, straight versus premultiplied, no maths.
16 Sept 2026
Amazon product image requirements: the main image, pure white and the 85 percent rule
Amazon product image requirements from Seller Central: pure white main image, 85 percent fill, sizes for zoom, file formats and why listings get suppressed.
16 Sept 2026
Clipping path vs image masking: what retouchers mean, and what it costs
Clipping path vs image masking and hair masking: what each means, what published price lists charge per image, and when an AI cutout does the same job for free.
16 Sept 2026
eBay photo requirements: size, borders, backgrounds and the main photo
eBay photo requirements from eBay's own help: 500 pixel minimum, 1,600 recommended, no borders or added text, and a clean white background that passes.
16 Sept 2026
Etsy photo size and listing photos: sizes, thumbnails and backgrounds
Etsy photo size from Etsy's own help: 2,000 pixels recommended, 635 minimum for search, thumbnail crops, and why a transparent PNG shows black on Etsy.
16 Sept 2026
Headshot background: the best colour, and why
The best headshot background colour: grey, blue, white, black or office blur, matched to hair, clothes and use. Change yours free without uploading it.
16 Sept 2026
HEIC vs JPG vs PNG: which should your photos be?
HEIC vs JPG vs PNG compared on file size, quality, compatibility, transparency and editing, with a plain answer for keeping, sharing and editing photos.
16 Sept 2026
How to check that a website is not uploading your photos
How to check if a website uploads your photos, using the network tab in Chrome, Edge, Firefox and Safari plus an offline test. Two minutes, no tools to install.
16 Sept 2026
How to make a background transparent in Paint
How to make a background transparent in Paint on Windows 11: Remove background, saving a PNG that keeps it, and why transparent selection never did.
16 Sept 2026
How to make a logo transparent, even from a photo
How to make a logo transparent, from a file or a photo of paper, a sign or a shirt: fix the angle, save a transparent PNG, then trace a vector with getSVG.
16 Sept 2026
How to make a transparent PNG: three ways that work
How to make a transparent PNG from a photo, in a free editor, or from a logo on white. Which way suits your picture, and how to check the file is really clear.
16 Sept 2026Reading about it is slower than trying it
Drop a photo and get a transparent PNG at full resolution. Free, no account, nothing uploaded.