How to input a3 in cdr to spread papers?

I'm glad to answer your question. You need to set the maximum value, but the maximum value is also the maximum value that can be achieved according to your drawing margin, because CAD is not a software that can automatically enlarge, such as WORD.

Usually, when nothing is selected in the CDR (just click in the blank space), there will be a dimension in the attribute column above, and it will be changed to A3.

1, you enlarge the picture to A3 size,

2. If your printer can print pictures of A3 size,

3. Set the print input size to A3 in the printer properties.

4. print.

If the printer can only print pictures of A4 size,

3. Please print it as a page when previewing.