将png图像合并为一个pdf文件
问题描述：
如何在Unix中将多个.png文件合并为一个PDF文件?
How can I merge several .png files into one PDF file in Unix?
答
通过浏览ImageMagick上的文档，可能很简单:
From looking through the documentation on ImageMagick, it might be as easy as:
convert 1.png 2.png myfile.pdf
如果这不起作用，请 PDFjam 声称能够解决您的问题.
If that doesn't work, PDFjam claims to be able to solve your problem.