Image Optimization Guide
Step-by-step tutorial for effective image optimization
Importance of Image Optimization
Images with appropriate size and format improve website loading speed, enhance user experience, and help with search engine optimization. Image optimization also plays an important role in improving performance on mobile devices and saving data usage.
Benefits of Image Optimization
- Improved website loading speed
- Better search engine rankings
- Enhanced mobile user experience
- Reduced data usage and storage space
Recommended Image Sizes by Platform
The optimal image size varies depending on the platform and purpose. The table below shows the recommended image sizes for major platforms.
| Platform | Recommended Size | Aspect Ratio |
|---|---|---|
| Instagram (피드) | 1080 x 1080px | 1:1 |
| Instagram (세로) | 1080 x 1350px | 4:5 |
| Facebook (게시물) | 1200 x 630px | 1.91:1 |
| 1200 x 675px | 16:9 | |
| 1200 x 627px | 1.91:1 | |
| 1000 x 1500px | 2:3 | |
| 웹사이트 헤더 | 1920 x 1080px | 16:9 |
| 이메일 배너 | 600 x 200px | 3:1 |
Step-by-Step Image Optimization Guide
Learn how to optimize images using Mandeul Image Resizer step by step.
Step 1: Select an Image
Select or drag and drop the image you want to optimize.
- Use image files under 10MB.
- Supports JPEG, PNG, GIF, and WebP formats.
Step 2: Adjust Size
Set the image size according to your purpose. Choose the appropriate size for social media, websites, emails, etc.
- Activating the 'Keep aspect ratio' option prevents image distortion.
- It's good to set the size slightly larger than needed.
Step 3: Set Quality and Format
Select the image quality and output format. It's important to choose the appropriate quality and format according to your purpose.
- For web use, JPEG 80-85% quality is a good balance point.
- Choose PNG or WebP format if you need a transparent background.
Step 4: Download and Use
Download the optimized image and use it wherever you want.
- Naming files meaningfully helps with SEO.
- Don't forget to add appropriate alt text to your images.
Balance Between Image Quality and File Size
Image quality and file size are in a trade-off relationship. It's important to find the optimal balance point.
Appropriate Quality Settings
JPEG 80-85% quality is recommended for web use, and 95-100% quality for print.
Choose the Right Format
Choose JPEG for photos, PNG for graphics and transparent backgrounds, GIF for animations, and WebP if you need support for the latest browsers.
Remove Metadata
Removing unnecessary metadata can further reduce file size.
Common Mistakes and Solutions
Learn about common mistakes that occur during image optimization and their solutions.
Using Oversized Images
Using images larger than necessary slows down page loading and wastes bandwidth.
Solution: Adjust the image size to match the actual display size.
Choosing the Wrong Format
Selecting an image format that doesn't match the purpose leads to quality degradation or increased file size.
Solution: Choose the appropriate format for the image type and purpose.
Excessive Compression
Compressing images with too low quality settings results in noticeable quality degradation.
Solution: Find the optimal compression level where quality degradation is not visually detectable.
Improve Website Performance with Image Optimization
Image optimization is a key element in improving website performance. With Mandeul Image Resizer, anyone can easily perform professional-level image optimization.