Free PDF Visual Enhancer
Free Online PDF Contrast & Brightness Adjuster
Enhance faded scans, dark photocopies, or low-contrast PDF documents for crystal-clear readability and superior OCR recognition.
Adjustment Parameters
+30%
-100%Default (0%)+100%
+10%
Darker0%Brighter
1.20x
High Shadow Detail1.0xLinear Highlights
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Upload a scanned invoice, receipt, or PDF page to see live adjustments.