使用convert命令将pdf转成图片时遇到的一个问题

ゞ浴缸里的玫瑰 2023-10-04 11:54 39阅读 0赞

安装好ImageMagick,使用以下命令进行格式转换：

convert /usr/local/myFiles/20190515091653.pdf /usr/local/myFiles/20190515091653.jpg

遇到如下问题：

convert: FailedToExecuteCommand `'gs' -sstdout=%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 '-sDEVICE=pngalpha' -dTextAlphaBits=4 -dGraphicsAlphaBits=4 '-r72x72'  '-sOutputFile=/tmp/magick-2012381vZxcxDcsCr0B%d' '-f/tmp/magick-2012381IRKEiPBrOsyf' '-f/tmp/magick-2012381nsItEfmM2E6S'' (1) @ error/pdf.c/InvokePDFDelegate/291.
    convert: no images defined `/usr/local/myFiles/20190515091653.jpg' @ error/convert.c/ConvertImageCommand/3275.

刚开始，参照这2个地方的做法进行调整：

[https://www.cnblogs.com/koujiaodahan/p/11132665.html][https_www.cnblogs.com_koujiaodahan_p_11132665.html]

[https://jingyan.baidu.com/article/90895e0f0a0bc664ed6b0b6f.html][https_jingyan.baidu.com_article_90895e0f0a0bc664ed6b0b6f.html]

说改好后要重启服务器，个人不太愿意也不想重启，后面果断放弃这种方案，然后自己进行研究，**想到ImageMagick的运行，依赖ghostscript环境**，错误日志里边提到“gs”,无法执行，我已经解压安装了ghostscript，但我不是采用默认安装，而是安装在指定路径，会不会是系统找不到执行文件，于是为gs建立软连接， Linux默认执行/usr/bin里边的。(注意替换为自己**ghostscript的安装目录)**

ln -s /myGs/bin/gs /usr/bin

然后重新执行上面pdf转换命令，终于将pdf成功转成图片。

**还是那句话，同样的问题，产生的原因各有不同，一定要结合自己的实际情况进行分析，找出适合自己的解决方案，上面列出的解决办法也是一种方案，关键是问题产生的根源是一致或相似的可以参考，不能盲目照搬。**

ImageMagick的安装可参考我另一篇博客[https://blog.csdn.net/shenxiaomo1688/article/details/90296810?ops\_request\_misc=%257B%2522request%255Fid%2522%253A%2522161942929316780271544559%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request\_id=161942929316780271544559&biz\_id=0&utm\_medium=distribute.pc\_search\_result.none-task-blog-2~blog~first\_rank\_v2~rank\_v29-1-90296810.nonecase&utm\_term=Imag&spm=1018.2226.3001.4450][https_blog.csdn.net_shenxiaomo1688_article_details_90296810_ops_request_misc_257B_2522request_255Fid_2522_253A_2522161942929316780271544559_2522_252C_2522scm_2522_253A_252220140713.130102334.pc_255Fblog._2522_257D_request_id_161942929316780271544559_biz_id_0_utm_medium_distribute.pc_search_result.none-task-blog-2_blog_first_rank_v2_rank_v29-1-90296810.nonecase_utm_term_Imag_spm_1018.2226.3001.4450]

[https_www.cnblogs.com_koujiaodahan_p_11132665.html]: https://www.cnblogs.com/koujiaodahan/p/11132665.html
[https_jingyan.baidu.com_article_90895e0f0a0bc664ed6b0b6f.html]: https://jingyan.baidu.com/article/90895e0f0a0bc664ed6b0b6f.html
[https_blog.csdn.net_shenxiaomo1688_article_details_90296810_ops_request_misc_257B_2522request_255Fid_2522_253A_2522161942929316780271544559_2522_252C_2522scm_2522_253A_252220140713.130102334.pc_255Fblog._2522_257D_request_id_161942929316780271544559_biz_id_0_utm_medium_distribute.pc_search_result.none-task-blog-2_blog_first_rank_v2_rank_v29-1-90296810.nonecase_utm_term_Imag_spm_1018.2226.3001.4450]: https://blog.csdn.net/shenxiaomo1688/article/details/90296810?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522161942929316780271544559%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=161942929316780271544559&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_v2~rank_v29-1-90296810.nonecase&utm_term=Imag&spm=1018.2226.3001.4450