Practical guides for everyday tools
Clear answers based on how these tools work, including limits to check before you start.
How to compress an image to under 50 KB
Use a target size, choose the right format and check the downloaded file without confusing file size with image dimensions.
Read guide →PDF compression and selectable text
Understand when PDF compression preserves document content and when rasterizing pages trades editability for size.
Read guide →Choose JPG PNG or WebP for an upload
Match transparency, file size and destination support to the image format you export.
Read guide →How local AI works on UtilityHub
Understand browser writing AI, the desktop companion, model downloads and what stays on your device.
Read guide →Format JSON without changing large numbers
Keep numeric text intact when formatting JSON and understand precision limits during conversion.
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