You can use our software Contenta Converter PREMIUM to adjust the brightness of PDF. Download now
Step 1: Select your PDF photos
Click on the Add Photos button and select from your computer the PDF photos you wish to adjust the brightness to. Then click the ‘Next’ button.
Step 2: Modify brightness from your PDF photos
Go the Advanced tab and select Add Effect/Annotation->Color processing->Brightness-Contrast. Adjust the value of the brightness slider (-100% <-> +100%). Click Start! and the brightness of your PDF photos will soon be adjusted.
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