reduce the top margin in pdf file.

crop the proper region you want in acrobat pro, then print it to a new pdf file.

One can also change some control numbers inside the pdf file, there are some numbers about the crop, changing those numbers has the same function as the tool crop. The rest procedures are the same.


The tool "touch up" in acrobat pro can easily move the selected objects, which is very convenient to reduce the top margin blanks.