Change the pdf/a viewing mode, Display pdfs in line weights view – Adobe Acrobat XI User Manual
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Workspace
Last updated 1/14/2015
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Under Categories, select General.
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In Basic Tools, choose the desired default setting from the Touch Mode menu.
Change the PDF/A viewing mode
PDF/A is an ISO standard for long-term archiving and preservation of electronic documents. Documents you scan to
PDF are PDF/A-compliant. You can specify whether you want to view documents in this viewing mode.
When you open a PDF/A compliant document in PDF/A viewing mode, the document is opened in Read mode to
prevent modification. A message is displayed in the document message bar. You will be unable to make changes and
add annotations to the document. If you turn off PDF/A mode, you can edit the document.
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In the Preferences dialog box under Categories, select Documents.
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Choose an option for View Documents In PDF/A Mode: Never, or Only For PDF/A Documents.
You can switch in or out of PDF/A viewing mode by changing this preference setting.
For a video on working with PDF/A files, see
Display PDFs in Line Weights view
The Line Weights view displays lines with the weights defined in the PDF. When Line Weights view is off, it applies a
constant stroke width (1 pixel) to lines, regardless of zoom. When you print the document, the stroke prints at the true
width.
Choose View > Show/Hide > Rulers & Grids > Line Weights. To turn off Line Weights view, choose View > Show/Hide
> Rulers & Grids > Line Weights again.
Note: You cannot turn off Line Weights view when viewing PDFs within a web browser.
Compare a revised PDF to an earlier version (Acrobat Pro)
Use the Compare Documents feature to show the differences between two versions of a PDF. You can customize many
options for displaying the compare results. For a video on comparing PDFs, see
. (Video applies to both Acrobat X and Acrobat XI.)
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Choose View > Compare Documents.
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Specify the two documents to compare. If one or both of the documents is in a PDF Portfolio, select the PDF
Portfolio. Under Package Item, select the component PDF.
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As needed, specify the page ranges in the documents to compare in the First Page and Last Page boxes.
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Select the Document Description that best describes the documents you are comparing, and click OK.
Once the two documents are analyzed, a results document appears with the Compare panel open. The new
document is shown with annotations indicating the changes. The first page shows a summary of the comparison
results.
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From the Compare panel, do any of the following:
• To hide the annotations that display changes, click Hide Results.
• To specify the display options for compare results, click Show Options. You can specify the type of changes to
display, and the color scheme and opacity of the annotations. To return to the page thumbnails, click Hide
Options.