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Image editing guides, explained simply
Practical guides by Ashish Kathiriya, each linked to a free tool that does the job in your browser.
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What Is Image Resolution? Pixels, DPI and PPI Explained Simply
Image resolution explained in plain language: what pixels and megapixels are, how PPI links pixels to print size, what DPI really means, and why 300 DPI is not magic.
26 Aug 2026
How to Change Image Resolution Online: Pixels, DPI and PPI Step by Step
Work out whether you need more pixels or just a different DPI value, then change it: resize for web and forms, set PPI for print, and upscale only when you must.
25 Aug 2026