Guides
How the tools actually work
Short articles on QR codes, PDF pages, image size, and speed tests. Written for people who want the reasoning, not only a button.
Each guide is original to AyukTools and matches a live tool on this site. They exist so you can read complete paragraphs before you upload a file or tap GO.
If you already know the steps, skip to the Tools catalog. If a page still feels unclear after the article, email the contact address with the URL.
Make and scan a QR code without installing an app
Generate a PNG in the browser, scan from a photo or camera, and keep the payload on your device.
Read guide →Turn PDF pages into JPG files in the browser
Render each page locally when a form or a chat window will only take an image.
Read guide →Shrink a photo to a file size you can actually send
Set a KB or MB cap, keep the original format when you can, and know when scaling has to happen.
Read guide →What an internet speed test is actually measuring
A short, honest look at the four numbers on the AyukTools speed test.
Read guide →