我正在尝试制作一个小应用程序,它可以在node.js中将PDF文件转换为图片。
我发现pdf2pic包非常适合我想要做的事情。
所以按照该包的说明,我安装了Ghostscript和Graphicsmagick,然后安装了该包。我使用的是Windows操作系统。
以下是我的node.js代码:
const { fromPath } = require("pdf2pic");
const options = {
density: 100,
saveFilename: "untitled",
savePath: "./images",
format: "png",
width: 600,
height: 600
};
const storeAsImage = fromPath("test.pdf", options);
const pageToConvertAsImage = 1;
storeAsImage(pageToConvertAsImage).then((resolve) => {
console.log("Page 1 is now converted as image");
return resolve;
}).catch(error => {
console.log(error);
});
运行此代码后,我收到以下错误:
Error: Command failed: gm convert: No decode delegate for this image format (C:\Users\Yosse_M\AppData\Local\Temp\gmRuQc4v).
at ChildProcess.onExit (D:\Devs\NodeJS\app07-pdf2pic-test\node_modules\gm\lib\command.js:301:17)
at ChildProcess.emit (events.js:315:20)
at ChildProcess.cp.emit (D:\Devs\NodeJS\app07-pdf2pic-test\node_modules\cross-spawn\lib\enoent.js:40:29)
at maybeClose (internal/child_process.js:1021:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5) {
code: 1,
signal: null
以下是命令 gm -version 的返回结果:
C:\Users\Yosse_M>gm -version
GraphicsMagick 1.3.36 20201226 Q16 http://www.GraphicsMagick.org/
Copyright (C) 2002-2020 GraphicsMagick Group.
Additional copyrights and licenses apply to this software.
See http://www.GraphicsMagick.org/www/Copyright.html for details.
Feature Support:
Native Thread Safe yes
Large Files (> 32 bit) yes
Large Memory (> 32 bit) yes
BZIP yes
DPS no
FlashPix no
FreeType yes
Ghostscript (Library) no
JBIG yes
JPEG-2000 yes
JPEG yes
Little CMS yes
Loadable Modules yes
Solaris mtmalloc no
Google perftools tcmalloc no
OpenMP yes (200203 "2.0")
PNG yes
TIFF yes
TRIO no
Solaris umem no
WebP yes
WMF yes
X11 no
XML yes
ZLIB yes
Windows Build Parameters:
MSVC Version: 1500
我不知道如何解决这个问题,能请你给出一些建议吗?
如果需要更多信息,请告诉我。
谢谢。