Blog
Guides and explainers from the team behind Uvelia. Short, opinionated, and useful.
How to merge PDFs without uploading them anywhere
Why uploading PDFs to free sites is risky, and how modern browsers let you merge files entirely on your own device.
May 25, 20264 minpdfprivacyRead
JPG vs PNG vs WEBP — which format should you use?
A practical guide to choosing between the three formats for photos, screenshots, logos, and websites — with file-size comparisons.
May 23, 20265 minimageguideRead
What is a JWT? A 5-minute developer guide
JSON Web Tokens explained without jargon — what they are, what they're not, how to decode one, and when to use them.
May 20, 20265 mindevelopersecurityRead