If you do not want that arrow to disappear, you can right-click the drawing you would like to add a line break to, choose “Line break”, and choose the arrows in the same way. Line Numbers In the toolbar, click the pencil icon to draw a horizontal line, or arrow on the right. Press Delete to Delete. Move the pencil icon horizontally to create a vertical line. The Drawing Tool Format panel opens. Select the arrow on the left ‒ arrow on the right and you are done. Press Shift-V to paste a selection into the drawing. Press Esc to Cancel. Move the pencil icon vertically to create a horizontal line. Press Delete to Delete. Move the pencil icon horizontally to create a vertical line. Press Esc to Cancel. Now if you hover your mouse over a line: You can see exactly where a line starts and ends, or you can click on the right-hand corner of the line to have a tooltip showing exactly where it is (see above screenshot). The Draw Tool (B) can insert a line anywhere (the left-hand corner), or the end of the line is automatically added (the end of the line is always the same, whether it does or does not contain a horizontal line), and the right end of the line ends exactly where the left-hand end of the line ends. In this document, each line starts with a line break. So there will be a line beginning somewhere. It is not necessarily the right time to put in a line break; sometimes line breaks are not necessary, for the reason that the line is not complete, for example to make the table more legible (see the next article in the series). You can add line breaks by following these steps: To start a line break (without setting a starting time, just pressing the arrow), just click anywhere in the drawing You can see the current time and the end time (not sure if they're the same on Adobe Acrobat) Press Esc to confirm that you want to delete Line Break and move the pencil to a line break location. Press Enter again to confirm the new location. Press Enter again to commit the change You can remove Line Break by clicking anywhere in the drawing. Move the pencil, but do not delete Line Break.