魔杖政策错误:error/constitute.c/ReadImage/412 [英] Wand Policy Error: error/constitute.c/ReadImage/412

问题描述

使用魔杖将pdf转换为图像时，我遇到了问题:

I am facing the issue while converting pdf to image using Wand:

E           wand.exceptions.PolicyError: not authorized `/opt/sample.pdf' @ error/constitute.c/ReadImage/412

我已经在这里访问了上一个堆栈溢出问题: convert:未授权的"aaaa" @ error/constitute.c/ReadImage/453

I have already visited the previous stack overflow question here: convert:not authorized `aaaa` @ error/constitute.c/ReadImage/453

这是我的代码

def build_image(self, pdf_path, img_path):
    with wand.image.Image(filename=pdf_path) as img:
        img.save(filename=img_path)

我的代码过去6个月处于工作状态.现在，为什么会出现此错误?

My code was working form last 6 months. Now, why am I getting this error?

请帮助.

推荐答案

这可能是由于底层软件包的安全修复程序所致(请参阅

This is probably due to an security fix of the underlaying package (see https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1796563)

我通过编辑/etc/ImageMagick-6/policy.xml为我修复了该问题，并将pdf行的权限更改为"read":

I fixed it for me by editing the /etc/ImageMagick-6/policy.xml and changed the rights for the pdf line to "read":

<policy domain="coder" rights="read" pattern="PDF" />

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