Image Guides

Clear, practical guides to get image jobs done right — sizing, compression, formats, printing and privacy. Every guide links straight to a free, in-browser tool.

Compression

How to Compress Images for Government & Exam Forms

A step-by-step guide to compressing a photo or signature to an exact KB size for government portals and exam applications — without losing clarity or going over the limit.

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Resizing

Social Media Image Size Cheat Sheet (2026)

Up-to-date pixel dimensions for Instagram, Facebook, YouTube, Pinterest, LinkedIn, X/Twitter and WhatsApp — plus one-click resizers for each.

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Passport & ID

Passport Photo Requirements by Country

Passport and visa photo sizes for the US, UK, India, Canada, Australia, the Schengen area and more — plus a free in-browser passport photo maker with background change.

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Conversion

Image Formats Explained: JPEG vs PNG vs WEBP vs AVIF

When to use JPEG, PNG, WEBP or AVIF — quality, transparency, file size and browser support — with free converters for each.

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DPI & Print

DPI vs PPI: What You Actually Need for Print and Web

What DPI and PPI mean, why 300 DPI matters for printing, and why screens only care about pixels — with tools to set DPI and check it.

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Privacy

Are Online Image Tools Safe? A Privacy Guide

Most online image tools upload your photo to a server. Here is why that matters for IDs and personal photos — and how in-browser processing keeps your images private.

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