Scanned images should be edited and tested externally before you import them in Adobe Acrobat or you will find yourself in a world of doom for using the incorrect program. In which, case you should not confuse interchangeably Adobe Acrobat Pro (which is a PDF editing program) with a program that specializes in graphical image manipulation, such as Adobe Photoshop (as correctly suggested to include others like Adobe Illustrator, Adobe Express, Microsoft Paint, Inkscape, GIMP, for example. Scanned images involve many digital layers that are composed of many other different types of data to make it appear as an single image file readable to the human eye. PS I would use magnifyer but when I put it the PDF on full screen, outside of the PDF itself is black which is converted to bright white, not helpful for viewing in a dark room which is the purpose.Īdobe Express, both the mobile app and through online services, has many features for free that allows you to do that, including removing the entire background and adding and saving the image file with a transparent background. The same way you would invert colors in magnifyer but I need to do that just on the document.

I need to invert the colors on a scanned document that reads as a image in adobe and does not have editable text. The above method only work with PDFs that can be read aloud or have editable text. I mean how do I actually invert colors of the image of the PDF itself not the text and background

Hit OK to save your new color preferences.For each of the above options, select your preferred color.Click on the checkboxes for Page Background and Document Text.Mark the Replace Document Colors checkbox.Choose Accessibility from the left-hand pane.Go to Open with and choose Adobe Acrobat Reader.Right-click on the PDF document for which you want to invert its colors.

Acrobat pdf editor