Guides & articles

Step-by-step guides for preparing photos and documents for online applications.

• Change Photo DPI to 300 Without Losing Quality – Learn how to change a photo's DPI to 300 without losing quality. Understand DPI metadata, pixel dimensions, and use our free online tool.
• How to Reduce PDF File Size: A Simple Guide – Learn how to reduce PDF file size without losing quality. Step-by-step guide using free online tools, plus tips to check the result and…
• Reduce Photo Size to 100KB on Mobile: Step-by-Step – Learn how to reduce photo size to 100KB on your phone. Step-by-step for Android and iPhone, plus common mistakes and how to check the…
• Compress Image to 50KB Without Losing Quality – Learn how to compress an image to exactly 50KB without visible quality loss. Step-by-step guide, JPG vs WEBP tips, and how to check…
• Compress Photo to 20KB for Online Application Forms – Learn how to compress a photo to 20KB for online application forms without losing quality. Step-by-step guide and common mistakes to avoid.