Python实现批量把SVG格式转成png、pdf格式的代码分享

需要提前安装cairosvg模块，下载地址

code:

#! encoding:utf-8
import cairosvg
import os
 
loop = true
while loop:
    svgdir = raw_input("请输入svg文件目录")
    if os.path.exists(svgdir) and os.path.isdir(svgdir):
        loop = false
    else:
        print "错误：您输入的svg文件目录不存在或者不是一个有效的目录，请重新输入"
 
loop = true
while loop:
    exportdir = raw_input("请输入导出目录")
    if os.path.exists(exportdir):
        loop = false
    else:
        print "错误：您输入的导出目录[" , exportdir  , "] 不存在，是否要创建这个目录？"
        loops = true     
        while loops:
            msg = ""
            cmd = raw_input("创建 (y) 重新 (r)")
            if cmd.upper() == "r":
                loops = false
            elif cmd.upper() == "y":
                os.makedirs(exportdir, true)
                if os.path.exists(exportdir):
                    loop = false
                    loops = false
                else:
                    print "创建目录失败[",exportdir,"]， 请重新输入"
            else:
                print "找不到您输入的命令，请重新输入"
             
 
cate = ("png", "pdf")
print "导出类型："
for i in cate:
    print i
     
loop = true
while loop:
    exportformat = raw_input("请输入导出类型")
    if exportformat.lower() in cate:
        loop = false
    else:
        print "您输入的类型不存在，请重新输入"
 
def export(fromdir, targetdir, exporttype):
    print "开始执行转换命令..."
    files = os.listdir(fromdir)
    num = 0
    for filename in files:
        path = os.path.join(fromdir,filename)
        if os.path.isfile(path) and filename[-3:] == "svg":
            num += 1
            filehandle = open(path)
            svg = filehandle.read()
            filehandle.close()
            exportpath = os.path.join(targetdir, filename[:-3] + exporttype)
            exportfilehandle = open(exportpath,'w')
             
            if exporttype == "png":
                cairosvg.svg2png(bytestring=svg, write_to=exportpath)
            elif exporttype == "pdf":
                cairosvg.svg2pdf(bytestring=svg, write_to=exportpath)
                 
            exportfilehandle.close()
            print "success export ", exporttype, " -> " , exportpath
     
    print "已导出 ", num, "个文件"
export(svgdir, exportdir, exportformat)

使用：

请输入svg文件目录d:\svg
请输入导出目录d:\images
错误：您输入的导出目录[ d:\images ] 不存在，是否要创建这个目录？
创建 (y) 重新 (r)y
导出类型：
png
pdf
请输入导出类型png
开始执行转换命令...
success export  png  ->  d:\images\a.png
success export  png  ->  d:\images\db2.png
success export  png  ->  d:\images\db3.png
已导出  3 个文件

d:\>tree svg /f
folder path listing
volume serial number is 4603-09b2
d:\svg
    a.svg
    db2.svg
    db3.svg
 
no subfolders exist
 
 
d:\>tree images /f
folder path listing
volume serial number is 4603-09b2
d:\images
    a.png
    db2.png
    db3.png
 
no subfolders exist