Ajuster les couleurs

Affinez la luminosité, le contraste, la saturation et plus dans votre PDF.

Cliquez pour sélectionner un fichier ou glissez-déposez

Un seul fichier PDF

Vos fichiers restent sur votre appareil.

Comment ça marche

1

Upload File

Click or drag and drop your PDF file to begin

2

Adjust Colors

Fine-tune color settings with real-time preview

3

Download

Save your color-adjusted PDF instantly

Outils PDF associés

PDF to Greyscale

Free online greyscale tool

Invert Colors

Free online invert colors tool

Scanner Effect

Make PDFs look scanned

Background Color

Change PDF background

Text Color

Change PDF text color

Questions fréquemment posées

Is adjust colors really free?

Yes! PDFBay is 100% free with no hidden fees, no signup required, and unlimited file processing.

Are my files private and secure?

Absolutely! All processing happens in your browser. Your files never leave your device, ensuring complete privacy.

Is there a file size limit?

No! Process files of any size, as many times as you want, completely free.