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An SVG keeps every picture at full resolution, whatever size it is drawn at: a folio with 22 phone photos shown at a tenth of their size gave a 270 MB SVG and took 65 s to write, most of it compressing the photos again. The export dialog gets "SVG: smaller pictures" (off by default, kept with the other export settings), and --export-svg gets --svg-small-pictures. With it, a picture is stored at four times the size it is drawn at when that is smaller than the picture; smaller pictures stay whole. Four times is about 375 dpi on a printed folio. The exporter sets Diagram::smallPictures() for its own drawing only, so screen, print, PDF and PNG are unchanged. It is not part of applyProperties(), which every format uses. On that project: --export-svg 84.9 s -> 34.5 s (opening is 20 s of both), 270 MB -> 57 MB, peak memory 2.45 -> 1.86 GB. Rendered at twice the folio size, the two SVGs differ by more than 32/255 on 0.23 % of pixels, along photo detail. tst_svgsmallpictures: an 800x600 picture drawn at 0.1 is stored at 320x240 with the option, through --export-svg and through the dialog's QPicture route, and at 800x600 without it; a 40x30 picture stays whole. It fails when the factor is changed. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>