我在 Linux 上，我想获取一个 SVG 文件并将其以给定的分辨率（缩放）烘焙成 PNG 文件。有没有办法从命令行快速有效地完成此操作？
我正在寻找这样的东西：
svg2png --width 128 --height 128 input.svg output.png
有这个工具吗？
答案1
convert -resize 128x128 input.svg output.png
如果输入画布尺寸小于给定尺寸，这将放大输出而不重新采样。要获得更高质量的结果，请添加-density范围：
convert -density 500 -resize 128x128 input.svg output.png
ImageMagick 将矢量图像栅格化为画布分辨率，默认密度为 72 dpi。
要使用适当的采样进行放大，您可以指定一个过高的值，例如上述示例中的 500 dpi。
使用过高的光栅密度可能会导致大尺寸画布出现性能问题。最低且理想的光栅密度为： raster_density = raster_size / original_size * original_density
这种理想的光栅密度将直接将图像输出为预期大小（不需要-resize）。但由于可能出现浮点数近似值，建议使用稍高的值并调整大小以获得像素完美的结果。
您可以使用以下方法获取原始尺寸和密度ImageMagick 的百分比转义：
convert input.svg -format "%w %h %[resolution.x] %[resolution.y]" info:
请注意，ImageMagick 无法处理 SVG 的完整规范。如果遇到形状渲染不正确的问题，请查看此主题选择 ImageMagick SVG 渲染器。
答案2
rsvg和都inkscape可以：
$ rsvg
Usage: rsvg [OPTIONS...] file.svg file.png
-d, --dpi-x=<float> pixels per inch
-p, --dpi-y=<float> pixels per inch
-x, --x-zoom=<float> x zoom factor
-y, --y-zoom=<float> y zoom factor
-w, --width=<int> width
-h, --height=<int> height
-q, --quality=<int> JPEG quality
-f, --format=[png, jpeg] save format
-v, --version show version information
Help options:
-?, --help Show this help message
--usage Display brief usage message
和：
$ inkscape --help
Usage: inkscape [OPTIONS...] [FILE...]
Available options:
-V, --version Print the Inkscape version number
-z, --without-gui Do not use X server (only process
files from console)
-g, --with-gui Try to use X server (even if
$DISPLAY is not set)
-f, --file=FILENAME Open specified document(s) (option
string may be excluded)
-p, --print=FILENAME Print document(s) to specified
output file (use '| program' for
pipe)
-e, --export-png=FILENAME Export document to a PNG file
-d, --export-dpi=DPI The resolution used for exporting
SVG into bitmap (default 90)
-a, --export-area=x0:y0:x1:y1 Exported area in SVG user units
(default is the canvas; 0,0 is
lower-left corner)
-D, --export-area-drawing Exported area is the entire
drawing (not canvas)
-C, --export-area-canvas Exported area is the entire canvas
--export-area-snap Snap the bitmap export area
outwards to the nearest integer
values (in SVG user units)
-w, --export-width=WIDTH The width of exported bitmap in
pixels (overrides export-dpi)
-h, --export-height=HEIGHT The height of exported bitmap in
pixels (overrides export-dpi)
-i, --export-id=ID The ID of the object to export
-j, --export-id-only Export just the object with
export-id, hide all others (only
with export-id)
-t, --export-use-hints Use stored filename and DPI hints
when exporting (only with
export-id)
-b, --export-background=COLOR Background color of exported
bitmap (any SVG-supported color
string)
-y, --export-background-opacity=VALUE Background opacity of exported
bitmap (either 0.0 to 1.0, or 1 to
255)
-l, --export-plain-svg=FILENAME Export document to plain SVG file
(no sodipodi or inkscape
namespaces)
-P, --export-ps=FILENAME Export document to a PS file
-E, --export-eps=FILENAME Export document to an EPS file
-A, --export-pdf=FILENAME Export document to a PDF file
-T, --export-text-to-path Convert text object to paths on
export (EPS)
-F, --export-embed-fonts Embed fonts on export (Type 1
only) (EPS)
-B, --export-bbox-page Export files with the bounding box
set to the page size (EPS)
-X, --query-x Query the X coordinate of the
drawing or, if specified, of the
object with --query-id
-Y, --query-y Query the Y coordinate of the
drawing or, if specified, of the
object with --query-id
-W, --query-width Query the width of the drawing or,
if specified, of the object with
--query-id
-H, --query-height Query the height of the drawing
or, if specified, of the object
with --query-id
-S, --query-all List id,x,y,w,h for all objects
-I, --query-id=ID The ID of the object whose
dimensions are queried
-x, --extension-directory Print out the extension directory
and exit
--vacuum-defs Remove unused definitions from the
defs section(s) of the document
--verb-list List the IDs of all the verbs in
Inkscape
--verb=VERB-ID Verb to call when Inkscape opens.
--select=OBJECT-ID Object ID to select when Inkscape
opens.
Help options:
-?, --help Show this help message
--usage Display brief usage message