PDF Enhancer

Whiten scans, fix brightness and contrast, and sharpen text. Your files are processed in your browser and are not uploaded to this site.

PDF Enhancer workspace Press Esc to exit

Clean up a scanned PDF, page by page

Add a PDF, pick a starting point, fine-tune while watching your pages, then save.

Works on one PDF at a time. The original file is never changed.

or browse — one PDF, any number of pages

Original

Enhanced

Updates as you change the settings. Tap a page to check it full size.

1. Starting point

None

Light

Balanced

Strong

Custom

Color

Keep colors

Grayscale

Black and white

2. Fine-tune

Clean background

Turns gray or yellowed paper white. Measured on each page.

Brightness

Contrast

Sharpness

Judge it full size; small previews exaggerate it.

3. Pages and output

All pages

Pages…

Pick below

Pages to enhance

Resolution of enhanced pages

Enhanced pages are saved as pictures, so their text can't be selected or searched afterwards. Pages you leave out are not touched.

Pages update as you change the settings. Click one to check it full size.

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