Image compression should make a file easier to use without making it look obviously worse. The best result is not always the smallest possible file. It is the smallest file that still looks right for its purpose.
Start with the final use
An image for a website does not need the same settings as a photograph prepared for printing. Website images should load quickly and look clean on common screens. Print files need more detail because paper can reveal softness and artifacts that are less noticeable online.
Before compressing, decide where the image will be used: a product page, email, social post, form upload, presentation, or print document. That decision tells you how much reduction is reasonable.
Choose a balanced compression level
For most photographs, a balanced setting removes invisible or low-value information first. Fine texture may change slightly, but faces, product edges, and normal color transitions should remain clear. Use the best-quality setting for portfolio work, screenshots with small text, or images that may be edited again.
The smaller-file setting is useful when a strict upload limit matters more than perfect detail. Always inspect the result at its normal viewing size before replacing the original.
Use the right format
JPG works well for photographs and complex color. PNG is better for interface screenshots, diagrams, and graphics that need transparency. WebP and AVIF can often create smaller web images, although compatibility with older software may matter.
If you only need a smaller version of the same format, open the matching tool such as Compress JPG, Compress PNG, or Compress AVIF.
Resize oversized dimensions
A 6000-pixel camera photo is unnecessary when it will appear inside a 1200-pixel content area. Compression reduces data inside the image, while resizing reduces the number of pixels. Using both techniques can produce a much larger saving than compression alone.
Keep the original file
Compressed files are ideal for delivery and sharing. Originals are better for future edits. Store the original separately, give the compressed copy a clear name, and compare both before publishing.
A good compressed image should look unchanged during normal use, even when its file size is much smaller.
A simple workflow
- Keep a safe copy of the original.
- Choose the tool for the current format.
- Start with Balanced compression.
- Download and inspect the result at normal size.
- Try Smaller file only if you need a stronger reduction.
Compress.pk processes uploads privately, removes source files after processing, and provides a temporary download for the result.