Camera EXIF (ISO, shutter, lens, GPS coords) is preserved by default during PNG → SVG when both formats support metadata. Use the privacy option to strip metadata before download if you need to share images without geolocation.
For JPG / WebP, quality 75-85 typically gets the SVG 60-80% smaller than PNG with no visible difference at normal viewing distance. For lossless SVG (PNG, TIFF), expect smaller savings — usually 5-30% via better deflate / LZW compression. SVG 完全可以使任何尺寸的大小保持完美,可以编辑,可以作为纯文本搜索和易读,通常相当于同等的巴布亚新几内亚的很小一部分。