About Image Resizing
Image resizing is the process of changing the dimensions of an image. This is useful for various purposes such as:
- Optimizing images for web use
- Preparing images for social media platforms
- Creating thumbnails
- Fitting images to specific design requirements
- Reducing file size for easier sharing
Resizing Methods
Custom Dimensions
This method allows you to specify exact pixel dimensions for your image:
- Set specific width and height values
- Option to maintain aspect ratio to prevent distortion
- Useful when you need an image to fit exact dimensions
Percentage Scaling
Scale your image by a percentage of its original size:
- Proportionally resize both width and height
- Values below 100% make the image smaller
- Values above 100% make the image larger (up to 200%)
Preset Sizes
Choose from common predefined dimensions for various purposes:
- Small (640x480): Good for email attachments or thumbnails
- Medium (1280x720): Standard HD resolution
- Large (1920x1080): Full HD resolution
- Social Media (1200x630): Optimized for social sharing
- Profile Picture (400x400): Square format for profile images
Understanding Aspect Ratio
Aspect ratio is the proportional relationship between an image's width and height. Maintaining the aspect ratio when resizing prevents the image from becoming stretched or distorted.
When "Maintain aspect ratio" is checked:
- If you set only the width, the height will be calculated automatically
- If you set only the height, the width will be calculated automatically
- If you set both, the tool will prioritize the width and adjust the height accordingly
Tips for Quality Resizing
- Downsize, Don't Upsize: Reducing image size generally maintains quality, but enlarging can cause pixelation
- Choose the Right Format: JPEG for photos, PNG for graphics with transparency
- Balance Quality and File Size: Higher quality settings result in larger files
- Consider the Purpose: Different uses (web, print, social media) have different optimal sizes
Privacy & Processing
All image processing happens directly in your browser using HTML5 Canvas technology. Your images are never uploaded to our servers, ensuring your privacy and data security.