Guides, page 6
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.
Does converting an image to PDF lose quality?
It should not, and usually does. Why most converters re-compress your photo for no reason, what a generation of JPEG loss looks like, and how to avoid it.
18 Sept 2026
DPI explained: what resolution to scan, print and export at
What dpi really means, why the number inside a file is usually meaningless, and the resolution to use for scanning, printing, screens and PDF pages.
18 Sept 2026
How to get the images out of a PDF
Two different jobs hide behind this: rendering pages as pictures, and pulling out the original images placed inside. Which you need, and how to do each.
18 Sept 2026
How to turn a picture into a PDF, on any device
Turn photos into a PDF on iPhone, Android, Windows, Mac or in a browser, and put several into one document. The built-in way on each, and what each gets wrong.
18 Sept 2026
What is a PDF, and why does it look the same everywhere?
What a PDF really is: not a picture, but a set of drawing instructions with the fonts packed in. Why it looks identical everywhere, and what that costs you.
18 Sept 2026
A custom Microsoft Teams background from your own image
Upload your own Teams background: the Add new steps, the file types Microsoft accepts, a sensible 16:9 size, and how to make a clean branded image for free.
17 Sept 2026
A Discord profile picture from your own photo
Make a Discord PFP from a photo: the file types and limits Discord states, a square that survives the circle crop, transparency, GIF avatars, server profiles.
17 Sept 2026
Baby passport photo: US rules for newborns and infants, and how to take one
Baby passport photo rules for a US passport, checked September 2026: 2x2 inches, white sheet, no hands, eyes may be half closed. How to take it at home.
17 Sept 2026
Canadian passport photo requirements: size, studio rules and what you can check at home
Canadian passport photo size, checked October 2026: 50 x 70 mm (2 x 2 3/4 inches), face 31 to 36 mm, by a commercial photographer, never altered.
17 Sept 2026
US passport photo requirements: size, head, background and edits
US passport photo requirements checked September 2026: 2x2 inches, head 1 to 1 3/8 inches, white background, no glasses, no edits. How to make one at home.
17 Sept 2026
US visa photo requirements: DS-160, DV lottery, immigrant visas and green cards
US visa photo requirements checked September 2026: 600 x 600 px JPEG up to 240 KB, head 50 to 69 percent, white background, no glasses, no edits.
17 Sept 2026
What is a PNGTuber, and how to make one from a photo
A PNGTuber is a streaming avatar made of a few transparent PNGs that swap when you talk. The images you need, free PNGTuber software, and setting it up in OBS.
17 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.