Practical Guides for Images, PDFs, and QR Codes
How to compress an image without wrecking it, merge a PDF that comes out in the right order, and print a QR code that actually scans - written around the tools on this site, most of which are free and need no account.
Articles
Everything We Have Written So Far
Straightforward walkthroughs of the things people get stuck on - file formats, page order, print quality - with the tradeoffs spelled out instead of glossed over.
How to Compress Images for the Web Without Losing Visible Quality
A practical guide to shrinking JPG, PNG, and WebP files for the web - which format to use, what the quality slider actually does, and how to tell when you have gone too far.
How to Merge PDFs and Get the Page Order Right the First Time
Combining PDFs is easy. Combining them in the right order, the right way up, without a watermark or an upload, takes about thirty seconds more thought.
How to Make a Wi-Fi QR Code - and Which Network You Should Never Use
A Wi-Fi QR code saves your guests from typing a 20-character password. It also stores that password as readable text, which decides for you which network it should point at.