Create an SVG with viewBox 0 0 1200 630, a few paths and text using system-font presentation attributes. Choose width 1,200, keep aspect ratio and use the white background preset.
Expected dimensions and opacity
Locked sizing produces exactly 1,200 × 630 because source and destination ratios match. The canvas is filled #FFFFFF before drawing, so the result background is opaque. The downloaded filename ends in -1200x630.png.
System text still needs visual review
The SVG cannot embed or fetch a custom font in this profile. A system font may differ between operating systems and change line breaks or glyph widths. Convert critical lettering to paths in a trusted editor, or inspect the export on the production platform before publishing.
Reproduce and inspect
Create the stated SVG with presentation attributes, choose the example dimensions and background, then convert. Confirm the visible dimensions and downloaded PNG IHDR agree. Encoded byte counts can vary by browser, but the width, height, alpha choice and filename must match the example contract.