You cannot measure angles directly within Adobe Acrobat. Adobe Acrobat is primarily a PDF viewer and editor, not a dedicated drawing or design tool. It lacks the functionality to measure angles or other geometric properties.
To measure angles, you would need to use dedicated software like:
- Adobe Illustrator: A vector graphics editor designed for creating and manipulating images.
- Autodesk AutoCAD: A computer-aided design (CAD) software for creating 2D and 3D drawings.
- Google Drawings: A free online drawing tool for creating basic diagrams.
These programs offer tools for measuring angles, lines, and other geometric properties.
If you need to measure angles in a PDF document, you could:
- Open the PDF in a different program: Use one of the programs mentioned above to open and measure the angles in the PDF.
- Convert the PDF to an editable format: Convert the PDF to a format like an image or vector file, which can then be opened in a suitable program for measurement.
Remember that the accuracy of your measurements depends on the quality of the original PDF and the software you use.