1.Open the PDF file in the Citavi preview pane. In the Reference Editor, click Preview and select the PDF file from the list. Alternatively, click the paperclip icon for the corresponding reference.
2.Enlarge the preview pane if necessary by clicking the layout icon Show right pane only:
3.Click the text selection tool:
4.Press and hold the left mouse button while you move the mouse over the text you want to select. After making your selection, choose an action (for example Highlight). If you can't select any text your file is either read-only (designated by a yellow lock symbol on the bottom-left of the preview pane) or it contains a scanned text. If the file contains a scanned text, use Adobe Acrobat's optical character recognition (OCR).
Occasionally, tables or images might get in the way of your text selection. In such cases, you can press the Ctrl key and then click on the section of text after the unwanted element to continue your selection. If you accidentally select text you don't want, hold down the Shift key and the left mouse button while moving your mouse over the unwanted text. When you release the Shift key, the text is removed from the selection.