Why convert to PNG instead of keeping JPEG or WebP?
PNG is lossless (no quality degradation from re-encoding) and supports a transparent background — JPEG doesn't support transparency at all, and repeatedly re-saving a JPEG loses quality each time. PNG is the better choice for logos, screenshots, diagrams, and anything you'll keep editing.
Isn't PNG a much bigger file than JPEG?
For ordinary photos, yes — PNG files run noticeably larger than JPEG for the same image, since it doesn't throw away any data. If file size matters more than lossless quality or transparency, JPEG or WebP is usually the better fit; use PNG specifically when you need transparency or repeated lossless edits.
Does converting to PNG preserve transparency?
Yes, if the source image already has an alpha channel (like a WebP or another PNG with transparency) — that transparency carries over. Converting from a JPEG won't add transparency, since JPEG never had any to begin with.