三d图纸转pdf为什么丢东西

㈠ CAD图纸怎么转PDF

cad转换成PDF格式后是空白的是由于未成功选择要转换的范围，具体解决步骤如下：
1、首先打开cad图纸一份，点击左上角图标，会弹出下拉框，点击输出按钮。
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2、点击输出按钮之后，就会出现转换文件的格式，选择转换成pdf格式即可。
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3、此时，电脑会弹出一个对话框，选择修改文件的名称，点击需要转换的窗口文件进行选择。
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4、选择窗口中的文件进行转换成，此处文件是需要转换成pdf格式的界面。
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5、按回车键，又会出现对话框，此时选择需要保存的文件位置，点击确定即可。
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6、此时电脑就会自动打开转换成pdf格式的文件。
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㈡ 为什么cad没有dwg to pdf

你的CAD版本是不是太老了，你可以用绘图仪管理器添加PDF驱动试试
如何把CAD图纸输出输入PDF格式

http://jingyan..com/article/e5c39bf5c47ec439d760330c.html