Evening desk photos
Brighten a statement shot under yellow lamp light.
Adjust PDF brightness and contrast
Lighten dark phone captures and boost faded scans so statements and invoices are easier to read — and better for OCR.
- Brightness
- Contrast
- Browser-side
Drop a dark or low-contrast scan PDF
Files stay in your browser for this tool.
How to adjust a dim scan
A clearer page is faster to review.
- 1
Add the PDF
Drop a dark or low-contrast statement or receipt scan.
- 2
Tune sliders
Raise brightness or contrast until the numbers are clear.
- 3
Download
Save the adjusted PDF. Pages become image-based after adjustment.
Scans that need a light touch
Camera and copier output often lands too dark.
Dark phone photos
Under-lit desk captures of statements
Faded fax-style invoices
Low contrast gray text
Gray photocopies
Boost contrast before filing
OCR prep
Clearer digits help table extraction
When brighter pages help
Fix the capture before you chase OCR errors.
Faded vendor invoices
Increase contrast so line amounts stand out.
Before Excel extract
Prep hard-to-read pages, then pull rows with OCR.
Related tools
Rotate or compress after the page looks right.
- Rotate PDF
Fix sideways pages first.
Open tool - Compress PDF
Shrink the file after adjustments.
Open tool - Bank statement to Excel
Extract transactions when pages are scans.
Open tool - PDF to Excel
Pull tables into a spreadsheet after you prep the file.
Open tool - All free tools
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Frequently asked questions
- Will text stay selectable?
- Adjustment re-renders pages as images, so existing text layers are not preserved. Use this for scans you plan to OCR or read visually.
- Are files uploaded?
- No. Color adjustment runs in your browser for this tool.
- Need editable rows?
- After adjusting, use PDF to Excel.