- #Increase contrast pdf adobe acrobat dc pro how to#
- #Increase contrast pdf adobe acrobat dc pro install#
Next, choose the "Night Mode" button from the Options page.
Choose the gray lamp and right-click on it, then hit "Options". Search and add Turn Off the Lights browser extension to your web browsers, like Google Chrome, Firefox, Safari, etc. It will help you to make your PDF document darken for a better viewing experience on the web page.
#Increase contrast pdf adobe acrobat dc pro install#
If you don't want to download or install any third-party software, try some online tools like Turn Off the Lights browser extension. When you reopen it, it should be darkened. Go to the Quartz Filter section select Lightness Decrease. Open the PDF you want to darken with Preview. For instance, you can make changes to PDFs like annotate, combine, crop, rotate, add effects or password protect PDF files, or find text, display PDFs as a slideshow, print or lock a PDF easily using Preview on Mac.ĭetailed tutorial to make PDF darker with Preview: So, you can rely on this freeware to increase contrast in your PDF documents effortlessly.Īctually, you can do a lot more beyond darkening your PDF files. Preview is the default PDF and image viewer on macOS and comes with a range of PDF editing features. Save the file and close the image editor. To get there, click on Tools > Content Editing > Edit Text and Images, and then right-click on the page and edit it with your image editor. You have to edit the object with image editing tools like Photoshop, GIMP, or any other image editing tool.
Next, click on Edit Text, select the part of the PDF you want to darken, and then click on Edit Object. Step 4. Once a prompt asking you to choose a background color appears, select a dark color and click OK. Choose Add Background from the Background options. If you have Photoshop installed, it will be selected automatically. Now, a prompt asking you to choose an image editor will open. Step 2. Go to the Categories section, select Touch Up followed by Choose Image Editor. Open the PDF you want to darken in Adobe Acrobat. Go to the top menu, click on Edit> Preferences.
#Increase contrast pdf adobe acrobat dc pro how to#
How to darken light PDF files with Adobe Acrobat Pro: Plus, it also comes with several features about editing, managing, and even encrypting or decrypting. More than that, it can also be used to perform several other PDF editing functions such as converting among PDF and several other editable formats such as MS Word, Excel, Powerpoint, and some image formats including JPG, PNG, etc. Using this program, you can lighten PDFs and increase or lower contrast in PDF with ease. Adobe Acrobat Pro is another PDF editing tool you can use to make your light PDF files darker on both Windows and Mac.
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