You can usually also print to pdf, instead of letting the print job go to your default printer. Just be sure to specify that you only want to print the one worksheet. I would rather do that or save to pdf, as @jaytkay mentioned, than install new software to create the pdf.
But honestly, before making a pdf of the one page, I’d probably choose to copy the worksheet into a new Excel file. It’s less fussy, I think you end up with a smaller file, and the receiver sees exactly what you see. You don’t have to worry about whether the print area of the worksheet will exceed a normal page.
By the way, I’m not sure whether you have much experience with Excel, so I’ll mention that to copy an entire worksheet, you only have to click the blank square in the top left corner (between the 1 and the A), and this selects the entire page. Even easier that hitting CTRL-A.
Alternatively, you could “hide” all the tabs you don’t want the receiver to see (right-click the tab, select “Hide”), then send them the whole file. If they remain unaware that the hidden tabs exist, then they will never see them. But, obviously this is not a secure way to keep people from seeing information. The tabs can be unhidden by right-clicking on any tab, and selecting “Unhide”. Actually, I wonder if then locking the file for editing would keep them hidden… that might have possibilities, but I’ve never experimented with it.
But again, all that is more complicated than simply copying the worksheet into a new file and sending that.