Raster images and SVG (drawn to a bitmap first) are resized if wider or taller than 4096px, then exported as PNG, JPEG, WebP. JPEG is lossy and drops transparency; PNG is lossless; WebP and AVIF can be lossy or lossless depending on the browser. External fonts or images in SVG may not render if the browser blocks them. Adjust format and quality to refresh the preview.