How to reduce the file size of an image

• Practical use: Many online platforms (job portals, social media, applications) require smaller images for uploading.

• Storage: Large image files take up space on devices.

• Sharing: Smaller files are easier to send via email or messaging apps.

• Speed: Small images load faster in presentations or websites.

When showing learners how to resize images, keep these steps in mind:

1. Start with a Live Example

   • Open an image on your own device.

   • Use a simple tool like Microsoft Photos, Preview (Mac), or even Paint.

   • Share your screen or use a projector so everyone can follow.

   
   

2. Explain Two Methods of Making Images Smaller

   • Resizing (dimensions): Reducing the height and width (e.g., from 2000x1500 pixels to 800x600 pixels).

   • Compressing (file size): Keeping the same dimensions but reducing file size (useful for emailing).

     
     

3. Demonstrate Step-by-Step (example in Microsoft Photos on Windows):

   • Right-click the photo → Open with → Photos.

   • Click the three dots (…) menu → Resize.

   • Choose a preset (Small, Medium, Large) or Custom dimensions.

   • Save the resized version.

     
     

4. Practice Together

   • Ask participants to open their chosen image.

   • Guide them step by step.

   • Encourage them to try different sizes and compare results.

     
     

5. Show Before & After

   • Compare original and resized images side by side.

   • Highlight the change in file size (e.g., from 4MB to 500KB).

     
     

6. Encourage Exploration

   • Let learners try different tools if available on their devices.

   • Mention online free tools (e.g., TinyPNG, ILoveIMG) but emphasise caution about privacy if using personal photos.