Compress JPG, PNG, WebP and AVIF without losing the details you need
A smaller image is useful only if it still works where you need it. Start with the destination’s format, dimensions and byte limit, then compare the actual saved file.
Choose a format for the destination
JPG is a practical choice for photographs when the destination does not need transparency. PNG can preserve transparent pixels and sharp graphics. WebP and AVIF can be useful for smaller photographic images, but the receiving application must accept them. A smaller AVIF does not help a form that only accepts JPG.
In DamnPDFs, PNG at quality 100 uses full-colour lossless encoding; lower PNG quality reduces the palette. JPG, WebP and AVIF use lossy encoding here. Converting an already damaged JPG to PNG cannot restore the original detail.
- Open Compress images and add a JPG, PNG, WebP or AVIF.
- Select the output format accepted by the receiving app.
- Choose quality and, if needed, a maximum width or height.
Reduce dimensions before sacrificing readable detail
Fictional example: a 4000-pixel product photo is being sent for a page that displays it at a much smaller size. Try a 1600-pixel maximum width and a WebP output, then inspect the label on the product. The setting is an experiment, not a promise of a particular reduction.
Keep aspect ratio unless a deliberate change is required. Inspect thin lines, small letters, faces and smooth colour areas. If they smear or break up, use higher quality or a larger output. Do not enlarge an image expecting extra captured detail.
Work toward 50 KB or 100 KB honestly
A byte limit and a pixel dimension are separate requirements. Run once, check the download’s size and compare its appearance. Lower quality gradually or reduce dimensions when the destination allows it. DamnPDFs does not guarantee an exact number of kilobytes for every source.
Very small limits may be incompatible with a readable scan or detailed photograph. Keep the source and use another delivery method if the recipient allows one. Repeatedly compressing an already compressed output can accumulate damage; make comparisons from the original.
- Read the receiving site’s exact requirements.
- Compare output size with its limit and open the saved image.
- If needed, rerun from the source with a different setting and compare again.
Preserve transparency and review private information
Choose PNG, WebP or AVIF to retain transparency. JPG cannot store it and this tool places transparent areas on white. A transparent cutout should be checked on both light and dark backgrounds for pale halos or missing edges.
Image compression uses temporary cloud processing, with an input limit of 100 MB per file and 50 megapixels. Animated and multipage images are refused. The tool corrects orientation and removes metadata, but visible names, faces or addresses remain part of the picture. Review both content and quality before sharing.