Tables too large after pdf-export

hi,
when i am exporting the .md-file to pdf, the tables are to large/wide for the page-width.
it’s kinda bad, since apart from that the md-export would give a really clean pdf-file.
am i doing something wrong? im new to this.
thanks!
ps i seacrhed the forum and coulndt find any posts related to this. i hope this is the right forum to post this.