Guide
Use PNG or WebP when transparency matters. JPG output always needs an opaque background.
01
PNG and WebP can store an alpha channel, which describes opacity for every pixel. That allows soft shadows, antialiased edges, and partially transparent areas—not just fully visible or invisible pixels. JPG has no alpha channel, so it always represents a complete rectangular image.
02
When a transparent image is exported to JPG, every transparent pixel must be blended onto a solid background. If the converter defaults to white, a logo intended for a dark page can gain a visible white rectangle. Select a background that matches the destination before converting, or keep PNG/WebP when the asset must work on several backgrounds.
03
Some downloaded images show a gray-and-white checkerboard that is baked into the pixels rather than true transparency. Open the file in an editor or place it over a colored background to test it. A real alpha channel reveals the new background; a baked checkerboard remains visible.
04
Keep the document in a format that supports layers and transparency while editing. Export a PNG for maximum compatibility or WebP for controlled modern web use. Avoid copying through apps that flatten images, and verify the downloaded result because some chat and office tools automatically convert pasted images to JPG.
05
Converting JPG to PNG changes the container but does not automatically identify and remove the background. Background removal requires a separate selection or segmentation process. After removal, save the result as PNG or WebP so the new transparent pixels are preserved.