AvPad

Compress an image

Set the quality and the image is written again at that setting, with the old and the new file size shown side by side. Start around 75 for photos and go lower only as long as the picture still holds up. Up to 10 images at a time, 20 MB each.

Drop your images here

Up to 10 files, 20 MB each

Files are processed in memory and never stored. Nothing is kept once the result has been sent back.

75

Common questions

How much smaller does a file get?
It depends on the picture: a detailed photo at quality 75 usually lands somewhere between half and a fifth of the original, a flat graphic far less. Every result shows the size before and after, so you can try a setting and compare.
Which quality should I pick?
75 is a good default for photos; below 60, edges and open sky start to show blocks. Compression is lossy, so work from the original once rather than over and over on a file you have already compressed.
Does the slider do anything for PNG?
PNG has no quality dial, so it is packed at maximum compression instead. Below quality 90 the colours are reduced to a palette, which helps graphics and screenshots a lot; for photos, JPG or WebP get much further.
Why is my result bigger than the original?
Some files are already compressed harder than the setting you picked, and a PNG with a photo in it can grow when it is written again. Lower the quality, or convert the photo to JPG or WebP instead.

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