1. This may be affected by your pdf reader and printer driver. If it really doesn't work, you can try to rotate the page as mentioned above before printing, and adjust the printing direction by adjusting the page orientation.

2. Select the option "Tools" on the right side of the software interface to pop up the option content, and continue to select the "Rotation" function (or use the shortcut key "Ctrl+Shift+R") to pop up the rotation dialog box.

3. The printer can only print vertically, not horizontally. The reason is that landscape printing is not set and needs to be set manually. First turn on the computer, and then click the Start button. Then click Settings. Then click on the device. Then click Printers and Scanners.

4. computer, pdf. First, we open the PDF document and click the "Print" button in the "File" option in the upper left corner. Then, we click the "Page Setup" option on the page. After that, we can click the paper orientation you want to adjust under Orientation on this page, and then click OK.

5. Click Print to open a dialog box with the options of Properties or Print Settings. After clicking, you can select "Paper Direction".

6.PDF format is an image format file, which should be set by image printing.