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Frequently Asked Questions
What is image resizing and why is it important?
Image resizing changes the dimensions (width and height) of an image. It's important for optimizing images for web use (faster loading times), social media, email attachments, and ensuring they fit specific layout requirements.
How does image resizing affect image quality?
Reducing image size generally preserves quality well. Enlarging a small image can cause pixelation or blurriness, as the software has to guess new pixel data. It's best to start with a high-resolution image if you need a larger output.
What is the difference between resizing and cropping an image?
Resizing changes the overall dimensions of an image, scaling everything up or down. Cropping removes parts of an image to change its composition or to fit a specific aspect ratio without altering the scale of the remaining content.
What is aspect ratio in image resizing?
Aspect ratio is the proportional relationship between an image's width and height (e.g., 16:9 or 4:3). Maintaining the aspect ratio during resizing prevents the image from looking stretched or squashed.
When should I resize an image by percentage versus specific dimensions?
Use percentage for quick relative scaling (e.g., make it 50% smaller). Use specific dimensions (pixels) when you need an image to fit exact size requirements, like for a website banner or a profile picture.
Which image formats are best for resizing (e.g., JPG, PNG)?
Both JPG and PNG can be resized effectively. JPG is good for photographs due to its compression. PNG is better for graphics with text, sharp lines, or transparency. Resizing doesn't inherently favor one over the other, but the original format choice matters for quality.