The logo source you keep matters as much as the format you send. A vector design can describe shapes and paths. A raster export stores a grid of pixels. The source you retain affects how easily you can prepare the logo for a small icon, a wide header or a larger print.
A raster copy can be exactly right for one placement. It becomes less useful when you need a much larger version and the original design is missing.
Keep the design separate from the delivery copy
MDN describes SVG as a text-based format for vector graphics. Shapes defined as vectors can be rendered at different sizes without the same pixel-grid limitation as a small raster source.
That does not mean every file ending in .svg contains a fully vector logo. An SVG can include raster image content. Placing a small picture inside an SVG wrapper does not recreate it as paths or recover missing detail.
For a sample logo, ask for the appropriate editable source and a reference preview. The preview shows the intended appearance. The source supports future exports, subject to the application's fonts, features and dependencies.
Export for the placement you actually need
SVG to PNG can rasterize supported SVG content into a PNG. This tool checks a static SVG subset and refuses scripts, external resources, raster image elements, animation and filters. Supported text uses available local fonts, which can change its appearance. A refused design needs another suitable export route; do not delete meaningful elements simply to make the validator accept it.
Choose the export dimensions from the placement requirements. A header and an app icon can need different crops, spacing or amounts of detail. Merely scaling the same intricate design down may make small lettering disappear.
Open the export at the actual display size. Check fine lines, letter counters and the gap between elements. If those features merge, a simplified small-size version may be more useful than another resize of the detailed artwork.
A PNG export may need transparency or an intentional solid background. Confirm which one the recipient expects. Test the logo on the background where it will appear, especially when the design contains pale elements.
Image Resizer can prepare a supported raster file for a required size. It cannot recover the source geometry that was lost when a design became a small image. If you need a larger version, return to an appropriate original where possible.
Keep approved exports named by their purpose, such as a header or square icon, alongside the authorized source. This gives the next person a usable choice instead of a folder of similarly named images whose sizes and backgrounds they must guess.