How to Make a Page Darker With Adobe Acrobat
Adobe Acrobat is a program primarily used for creating portable document format (PDF) files. Prior to the invention of PDF files, if a document was transferred to another computer, the document’s format often had to be changed. Adobe resolved this problem by supplying Adobe Reader, a free program that would display PDF files just as they were originally created in Acrobat. Although PDFs are created so that they cannot be changed easily, occasionally, a PDF will be difficult to read if the text is displayed against a light background. Using Adobe Acrobat, you can change the background color of the PDF to make the file more readable.
Things You'll Need
- Adobe Acrobat
- PDF file
Change the Background Color
Open Adobe Acrobat. Click on "Document" > "Background" > "Add/Replace."
Click on the "From color" color box and select a darker background color. Acrobat allows you to select any color that your computer can display. If the desired color is not shown, click on “Other color” and select the color from the color wheel.
Adjust the opacity, if necessary. If the new color is too dark, decrease the opacity by moving the "Opacity" slider to the left, or by entering a smaller number in the percentage box. Then, click “OK.”
Set the Accessibility Preferences
Change the accessibility preferences. In addition to allowing users to change the background color for a specified document, Adobe provides accessibility features that allow users to set specific background and text colors for all documents. If a user is only able to see certain colors, these colors can be set so that the chosen background and text color display every time a document is opened in Acrobat. To set the preferences, select “Edit" > "Preferences” in Windows or “Acrobat" > "Preferences” in Mac OS.
Click on the check box next to “Replace Document Colors.”
Select “Use High-Contrast colors” to use a preset color combination. Acrobat has four color combinations that it considers to be high-contrast: Green text on black; yellow text on black; white text on black; and black text on white. Select the desired color combination from the drop-down menu.
Select “Custom color” to use a custom color combination. If the preset color combinations do not provide enough contrast, you can select a color combination of your choice. Click on the “Page Background” color box and select the desired color for the background. Then, click on the “Document Text” color box and select the desired color for the text. Click “OK” to accept the selection.