Adobe acrobat reader 7.0 Manuel D’Utilisation

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Using the Dimensioning tool
Use the Dimensioning tool to add a line markup that spans between two points. You can 
add lines that include your text comments in technical drawings or blueprints. 
Dimensioning lines can be drawn from right to left, or left to right and then positioned in 
any direction. Each end of the line includes an anchor point and arrow.
Each dimensioning markup includes a text box centered above the line that expands to 
accommodate lengthy entries. Line endings display arrows by default; line endings, color, 
opacity, and thickness can be modified. 
To add a Dimensioning markup:
1.  Select the Dimensioning tool 
 from the Drawing Markups toolbar.
2.  Drag from where you want the line to start, to create a line of the desired length. When 
you're finished, the tool switches to edit mode, and a text box appears above the line.
3.  Enter a value in the text box.
To edit a Dimensioning markup:
1.  Use the Hand tool to select the Dimensioning markup, and then do any of the following:
●     
To adjust the width or direction, drag one of the handles that appear on the vertical lines at 
each end.
●     
To adjust the height, drag the handle in the middle of the line.
●     
To change the value for the markup, double-click the line to make the Text Insertion icon 
appear.
2.  Use the Properties toolbar to change the color, line thickness and opacity, or arrow style. 
If the Properties toolbar is hidden, choose View > Toolbars > Properties Bar.
Using the Dimensioning tool to specify an area between two points