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Free PDF diagnostic
See the weak pages before they become a problem.
PDFBright turns a PDF into a page-by-page quality map so crooked, blank, unsearchable, soft, low-contrast, or unusually dark scan pages stand out immediately.
No signupNo document-content analyticsCurrent inspection runs in your browser
1 · Analyze the scan
Drop in a PDF to map its weak pages
Drop your scanned PDF here
PDFBright inspects low-resolution page renders for alignment, blankness, searchability, contrast, sharpness, and other scan-quality signals.
Free · no signup · up to 50 MB for browser safety