By ToolzHive · Published
Start with the destination requirements
Check whether the destination specifies width and height in pixels, a maximum file size, or both. These are different constraints. A 1200 × 800 pixel photo can have very different file sizes depending on its content and encoding. Keep your original file so you can try another export without editing a previously compressed copy.
Preserve proportions or crop first
For a proportional resize, turn on Keep aspect ratio and enter the required width. If a 2400 × 1600 image is reduced to 1200 pixels wide, its height becomes 800 pixels. The scale factor is 1200 ÷ 2400 = 0.5. Apply that factor to both dimensions. If you need a square image instead, crop to a square first; forcing the original into 1200 × 1200 stretches the subject.
Resize with ToolzHive
Open Image Resizer, choose the image and keep the aspect ratio enabled. Enter the desired pixel width or use a percentage preset. Select PNG, JPG or WebP, then download the result. Open the exported file and check its dimensions and appearance. If you need a different composition, return to the original and crop before resizing.
Understand the quality tradeoff
Reducing pixel dimensions discards image detail. Enlarging a small photo creates more pixels but cannot recover missing detail from the original scene. Judge the image at the size people will actually see it. Keep text legible, and avoid repeating resize and export operations on the same JPEG.
Meet a file size limit
If the dimensions are correct but the file is still too large, use Image Compressor as a separate step. Compare the output with the original and inspect fine details. File size is affected by the image itself, so a quality setting does not guarantee a particular number of kilobytes.
Put this guide into practice
- Image Resizer — Resize images to exact pixel dimensions or by percentage.
- Image Compressor — Reduce image file size while keeping visual quality.
- Image Cropper — Crop images freely or to popular aspect ratios like 1:1 and 16:9.