ransitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> Measure the height, width, or area of objects

Measure the height, width, or area of objects

The Measuring toolbar contains tools you can use to measure distances and areas of objects in PDF documents. The measuring tools are especially useful when you need to know the distances or areas associated with objects in a form or computer-aided design (CAD) drawing, or when you want to measure certain areas of a document before sending it to a professional printer. The measuring tools are available to Reader users only if the PDF creator enables measuring functionality.

When you use a measuring tool, the tool dialog box displays the measurements of the line segments you draw.

Measuring tools

Measuring toolbar
Object being measured
Tool display
  1. Choose Tools > Measuring, and select a measuring tool. Or, right-click/Control-click the toolbar area, and then choose Measuring.
  2. To measure areas of your PDF document, do any of the following:
    • Select the Distance tool  to measure the distance between two points. Click the first point, move the pointer to the second point, and then click again. The measurements appear in the tool dialog box. 

    • Select the Perimeter tool  to measure a set of distances between multiple points. Click each point you want to measure. Then, double-click the last point, or hold the pointer over the last point and click. 

    • Select the Area tool  to measure the area within the line segments that you draw. Click each point you want to measure. After you have clicked at least two points, click the first point to complete the area measurement. 

      Note: You can also finish a measurement by right-clicking/Control-clicking and choosing Complete Measurement from the context menu.
  3. While measuring objects, do any of the following:
    • To change the scaling ratio (such as 3:2) on the drawing areas, specify the appropriate numbers in the tool dialog box. If desired, change the unit of measurement next to this ratio.

    • Select Measurement Markup in the tool dialog box if you want the lines you draw to appear as a comment. You can then use the Hand tool to double-click the comment and view the measurement for the line segments that you draw. Unless Annotate is selected, the object you draw will disappear when you measure another object or select another tool.

Viewing PDFs in a web browser

Viewing PDFs in a web browser

You can view PDFs in a supported web browser, or you can set your Reader Internet preferences to open linked or downloaded PDF files in a separate Reader window. If you open PDFs in Reader outside the browser, you cannot use Fast Web Viewing, form submittal in a browser, or search highlighting on the web.

Because keyboard commands may be mapped to the web browser, some Reader shortcuts may not be available. Similarly, you may need to use the tools and commands in the Reader toolbar rather than the browser toolbar or menu bar. For example, to print a PDF document, use the Print button in the Reader toolbar rather than the Print command in the browser. (In Microsoft Internet Explorer, you can choose File > Print, Edit > Copy, and Edit > Find on the Internet Explorer toolbar.)

Important: (Mac OS) If you have Adobe Reader installed on your system and subsequently install Acrobat, Safari continues to use Adobe Reader to open PDFs in your browser. To reconfigure Safari to use Acrobat, you must quit Safari and all versions of Acrobat or Adobe Reader, start Acrobat, and then start Safari while Acrobat is running.

Internet preferences

To open the Internet preferences, choose Edit > Preferences (Windows) or Acrobat > Preferences (Mac OS), and select Internet under Categories.

Display PDF In Browser

Displays any PDF opened from the web in the browser window. If this option is not selected, PDFs open in a separate Acrobat window. On Mac OS, if you have installed versions of Adobe Reader and Acrobat, you can select which application and which version to use.

Allow Fast Web View

Downloads PDFs for viewing on the web one page at a time. If this option is not selected, the entire PDF downloads before it is displayed. If you want the entire PDF to continue downloading in the background while you view the first page of requested information, also select Allow Speculative Downloading In The Background.

Allow Speculative Downloading In The Background

Allows a PDF to continue downloading from the web, even after the first requested page appears. Downloading in the background stops when any other task, such as paging through the document, is initiated in Acrobat.

Connection Speed

Choose a connection speed from the menu. This setting is also used by the multimedia plug-in.

Internet Settings [or Network Settings]

Click to open the Internet or network connection dialog box or panel for your computer. For more information, consult your operating system Help, your Internet service provider, or your local network administrator.

View PDFs in Full Screen mode

View PDFs in Full Screen mode

In Full Screen mode, PDF pages fill the entire screen; the menu bar, toolbars, and window controls are hidden. A PDF creator can set a PDF to open in Full Screen mode, or you can set the view yourself. Full Screen mode is often used for presentations, sometimes with automatic page advancement and transitions.

The pointer remains active in Full Screen mode so that you can click links and open notes. There are two ways to advance through a PDF in Full Screen mode: You can use keyboard shortcuts for navigational and magnification commands, and you can set a Full Screen preference to display Full Screen navigation buttons that you click to change pages or exit Full Screen mode.

Set the Full Screen navigation bar preference

  1. Choose Edit > Preferences.
  2. Under Categories, select Full Screen.
  3. Select Show Navigation Bar.
  4. Select View > Full Screen Mode.

The Full Screen navigation bar contains Previous Page , Next Page , and Close Full Screen View  buttons, which appear in the lower left corner of the work area.

Read a document in Full Screen mode

If the Full Screen navigation bar is not shown, you can use keyboard shortcuts to navigate through a PDF.

Note: If you have two monitors installed, the Full Screen mode of a page may appear on only one of the monitors. To page through the document, click the screen displaying the page in Full Screen mode.
  1. Choose View > Full Screen Mode.
  2. Do any of the following:
    • To go to the next page, press the Enter, Page Down, or Right Arrow key.

    • To go to the previous page, press Shift+Enter, Page Up, or the Left Arrow key.

    • To change the magnification, press Ctrl+0/Command+0 for Fit Page view, Ctrl+1/Command+1 for actual size, Ctrl+2/Command+2 for Fit Width view, or Ctrl+3/Command+3 for Fit Visible view.

    You can show a Full Screen tool  on the Page Display toolbar by right-clicking/Control-clicking the Page Display toolbar and choosing Full Screen Mode. Then, you can click the Full Screen tool to switch to Full Screen mode.

Close Full Screen mode

 Do one of the following:
  • Press Ctrl+L/Command+L.

  • Press Esc. (Escape Key Exits must be selected in the Full Screen preferences. This is the default setting.)

Related Information
Open or close reading mode

Open or close reading mode