PNG files are lossless compressed bitmapped images. While they are compressed, they can still attain large file sizes depending on the type of image data saved—they are best suited for images with large areas of solid colours and defined boundaries (such as logos).

Is a PNG file larger than a JPEG?

The full-size PNG has a file size of 402KB, but the full-sized, compressed JPEG is only 35.7KB. JPEG works better for this image, because JPEG compression was made for photographic images. The compression still works for simple-color images, but the loss of quality is far more noticeable.

How big should PNG files be?

png) should be larger than 1000px wide × 1000px tall. We recommend map images to be smaller than 2000px wide × 2000px tall to reduce file size. A smaller guide will take less time for users to download, and it will update faster when attendees use your guide throughout your event.